Drop-stitch Inflatable Kayak Buying Guide: Razorlite, KXone, Tomahawk, Yakkair

See also
• Review: Aqua Marina Tomahawk Air-K 375
Paddling with a Yakkair Full HP2
Advanced Elements AirVolution
Decathlon X500
Gumotex Thaya
Gumotex Rush
• Buying direct from China
KXone Slider discussion on French KG forum

As predicted here a few years ago, before long someone was going to find a way of making a decent IK entirely from drop-stitch panels. Something a bit more sophisticated than the short-lived ‘three-plank’ bathtub on the left.
Right now there’s a lot of interest in these Full Drop-Stitch (FDS) IK because potential buyers view them as superior to a traditional round tubed IK. Certainly they’re miles better than just about any low-end Sevylor or Intex, but prices are currently still high and there’s still something to be said for a high-pressure but conventional tubed IK, or on with a DS-floor.

What is Drop-stitch?

For the full story on drop-stitch (DS) click this

Short version: a dense mass of non-stretch ‘space yarn’ is magically precision stitched between two fabric sheets which, once coated and sealed round the sides, make a flat, board-like panel. When inflated via the usual valve, this panel can withstand much higher pressures than a normal tubed IK. We’re talking up to 15psi (1 bar) which is four times more than even the firmest tubed IKs. As we know from iSUp boards (left) this means the kayak can be be as stiff as a hardshell. The huge popularity of iSUPs has helped advance DS technology.

Pressure has long been the weak link with traditional IKs once lengths increase. Floors need I-beams (above left), to act like space yarn to make a flat panel, but they’re expensive to assemble and – without pressure release valves (PRVs, more below) are vulnerable to damage or rupture if over-pressurised through neglect or when left out in the hot sun.

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Drop-stitch technology eliminates the longitudinal sagging commonly experienced under a single paddler’s central weight in a longer old-style boat (left). DS rigidity enables sea kayak-like lengths of 4 metres (13′) or more which adds up to more room inside, greater speed as well as a better glide (less effort). It’s the same energy saving gained by pedalling a pushbike with hard tyres instead of soft. Drop-stitch is far more effective than using metal frames to support saggy IKs. In my experience this is a poor solution.
Eight to ten-inch diametre side tubes also take up a lot of space inside. Four-inch thick DS panels get round this while retaining all the benefits of IKs: light weight, transportability and buoyancy.

Usually a full drop-stitch (FDS) IK is made of three flat panels. In a way they resemble a simple, self-assembled three-board wooden canoe (right).

They’re all almost certainly all made from Selytech DS PVC (left) developed by Woosung in South Korea. Woosung is the world’s biggest manufacturer of IKs and sell their own boats as Zebec Pro (Z-Pro and KXone). The Bic Yakkairs are made in Vietnam but probably use Selytech; most of the rest are assembled just over the Yellow Sea in and around Shandong, China. Once they get to western markets they typically go for around £1000 for a double – a lot compared to a used plastic hardshell.

DS IKs actually started with easy-to-fit drop-stitch floors (derived from iSUp boards) but retained the round side tubes. Some IKs are still made this way but all the boats on this page are Full DS. See image below for the three types of IK: tubed (bladdered – can also be ‘tubeless’); DS floor or Full DS.

Among others, Sea Eagle in the US, KXone and DS Kajak in Germany (same factory) plus Bic Yakkair in France all produce FDS IKs. Aqua Marina Tomahawk (left) is one, Bluewave Glider (below left) is another; an 18-kilo 4.7-m boat that’s only 76cm wide and was going for around £650 for the full kit, or 3.9-m singles from £550. That’s about as cheap as an imported and warrantied FDS gets.

You can try and buy direct from China as JtB did without regrets. I’ve tried twice off madeinchain.com and AliExpress: either no answer or payment immediately and suspiciously cancelled. If doing so, use a credit card so you have some protection. You won’t get a warranty but you should get some buyer protection

Allroundmarin is an Austrian importer bringing in the same re-branded Chinese-made FDS IKs customised with their own colours and features like a footrest strap and valves in the floor to help drain the floor cavity (and through which you can clamp an electric motor). Their 4.7-m model goes for around the same price as a Glider but consider the floor cavity drying issues…

Floors: Read This
Broadly speaking, these boats are assembled by wrapping and gluing the three DS panels in a reinforced skin of PVC which protects the DS panels from wear and abrasion but can make the boats bulky and heavy when rolled up.
Some FDS have removable floors, a bit like a footbed slips into a shoe. This makes the floor skin interior accessible for easy cleaning, rinsing and drying before storage – an important part of IK care.

Less good but almost universal is a DS floor permanently fitted to the floor skin or side panels, but not fully sealed. Water and debris get down in the gaps so some drain valve arrangement as below left is needed to allow water to run out when flushing or disassembling. This is not a self-bailing outlet, no matter what clueless vendors may claim or owners may think. Open the ports and the boat will pool with water for sure. Until I realised this, I was puzzled by these drains. So it seems are actual owners.
Bluewave Gliders are like this, so are Allroundmarin, Sea Eagle Razorlite, Tomahawk KXone and anything else with the telltale drain ports, either in the floor or at the stern, as below right on a Bic Yakkair HP.

Such a boat is nearly as much of a pain to dry as the bladdered IKs I go on about. There will always be moisture in the inaccessible cavity along the DS floor edge which you may struggle to dry properly, even if you can rinse and flush it. Proper rinsing and drying matter if you want your IK to last a long time, especially after you’ve been at sea, or when sand and other debris gets in the boat. Seawater causes mildew, staining, odours and possibly rot, so does trapped organic matter, while in the long term trapped grit might rub unseen against the soft PVC until it wears right through (this will probably take years).

A way to eliminate these issues is by fully sealing or ‘wallpapering over’ the side and floor DS panels where they join inside the boat. To drain and dry such fully sealed boats, you simply flip them over to let excess water fall out, then deflate, spread out and wipe dry, like the tube-type Grabner on the left.
A boat like this would have no crud-trapping, moisture retaining cavities which can’t be accessed to dry properly (unless the floor is removable). The problem with this idea would be the air trapped in this sealed-off cavity would make the boat bulkier to pack, like trying to roll up a partially deflated inner tube. A simple plug would get round that. Pull out to deflate, plug in once pumped up, but this is all hypothetical.
In 2020 Advanced Elements introduced the innovative two-panel AirVolution FDS IK which seems to have no crack between the upper and lower panels. Good for them because, apart from the added labour, sealing the insides is not exactly rocket science. For the moment it seems other manufacturers are happy to settle on removable floors or fitted floors with drains, just as some buyers are either oblivious or contented with bladdered IKs with the same tedious drying issues.

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Protracted KXone cavity drying instructions using what seems to be a hidden floor drain valve (6, 7).

Actually their is a worse option: supposedly ‘self-bailing’ FDS IKs which have little side cavities on the edge of the fitted floor and simple drain holes in the outer skin. There are no closable drain valves.
The tellingly unused and unbranded FDS IK (left) I saw on eBay the other day was like this. I had to check with the seller as there were no photos of the floor. Within an hour it sold for £700, but once on the water the new owner will find their boat filling up from below. It may only be a couple of inches but that water will slosh back and forth as you paddle along, adding several kilos of weight. You could easily tape up the holes in the outer skin, but this is why such boats are unbranded and without guarantees. No brand would risk doing it this way and get rightly hammered by negative customer feedback.

Inflatable keel tube

Keel tubes
One benefit of having the floor panel loose above the PVC outer skin is you get can a thin inflatable tube in there to give the hull more of a V-shape. The AirTrek FLex 465 by DS Kajak (and the same-but-different KXone FLex) have these optional shallow inflatable keel tubes (‘AirBone’) under the removable but clamped-down floor which you quickly inflate via a loose hose. It changes the hull shape from flat to V. More speed and a bit less stability is what they claim, and you can easily deflate the keel tube on the move if conditions get tippy. An FDS IK’s flat floor is one of its less good features, so this sounds like a clever idea. And as said, the floor is removable so it can all be cleaned and dried easily. Sounds like a win-win to me. See the video below or here.


What are they made from?
Nearly all brands are cagey about the Selytech fabric. There seems to be a word missing and that missing word is of course ‘PVC‘ – poly vinyl chloride: the Devil’s Fabric! But not all PVC need be nasty slackraft crap, as this page explains.
It may not be considered very green, but the PVC is applied as an air- and watertight coating over a polyester fabric base, just as ‘rubber’ is in hypalon and its derivatives.

Tracking (maintaining a heading)
Just about all of these Chinese FDS IKs come with an easily fitted slot-in skeg or tracking fin that’s often as tall as a killer whale’s dorsal fin. This means it will drag in the shallows. it’s easily trimmed – or buy a spare and cut it down for paddles which need it.


These boats also feature rigid moulded ends to help slice through the water (good images here). This is typically a weak point on broad-nosed tubed IKs (left).
Hardshells and conventional tubed IKs like old Gumotex can have a curved hull in both axes, particularly bow and stern uplift which is called rocker. The more banana-like profile the more rocker the easier it turns. Even with a formed hull and stern pieces, the plank-like floors of an FDS IK have zero rocker, suggesting these boats track well (especially with the formed plastic bow pieces) but will be hard to turn without a rudder, not least when when over 4.5-m long. Many owners report that indeed, they glide as straight as an arrow.

One French KXone owner admits that after a year of use… ‘It always wants to go straight, even without the skeg‘ and he’s thinking of installing a rudder. Another reviewer from the US says:
‘The 393 RL tracks very well, almost too well. I trimmed 3″ off the skeg for better clearance in shallow water and it still tracks straight and true. It’s easier to turn now as well, another nice improvement.’ Here’s another short review from the UK.

This is because some of these boats effectively have a frontal keel or a very sharply defined bow piece or more commonly now, a second frontal skeg (much cheaper to glue on). Even with a conventional skeg at the back, a flat hull needs help to track well, but this can make turning much harder, as we found on a DS-floored Moki II.
And the flat floor and box profile may make edging – leaning on one edge as you turn or counterbalance on waves – trickier. You’d need thigh straps to manage this but anyway, it’s all speculation. The proof is in the paddling and this Tomahawk owner said this boat’s initial (or primary) stability was a bit shaky, but once on edge was quite stable and took a lot to tip right over. This was on flat water. In more dynamic water conditions things may happen fast.
The bulk of these rigid plastic fixtures, as well as the stiff PVC DS panels may make FDS kayaks less easy to pack compactly than synthetic rubber IKs, though it’s possible Woosung’s Selytech ULite DS fabric is more pliable.

Pressure-release valves
It’s notable that there are no PRVs on most of these boats, presumably because the very high density of space-yarn means they can handle over-pressurisation when left in the hot sun better than an I-beam floor. The two-panel 2020 AE AirVolution above is an exception.

Otherwise, these FDS IKs have clear warnings at the valve not to exceed recommended pressures (left). You’d think the pressure increase in smaller-volume DS floors will be less extreme than fatter I-beam floors.

Some claim DS floors without PRVs won’t last as long as I-beams with PRVs. Much will depend on the quality of the original manufacture/assembly, maintaining the correct pressure and where possible, leaving the boat in the water on hot days to keep things cool.

These boats’ smaller volumes should also mean they’re quicker to inflate than a regular IK, although the effort in reaching 10psi will require a barrel pump and in the AE, above, requires well over a 100 strokes per chamber.

Footrests, Decks & Skegs
Not for the first time I see ideas I’ve tried on my own IKs. In Sea Eagle’s and Airkajak’s case it’s a simple footrest tube with an adjustable strap which I came up with a years ago! It’s so much simpler, versatile and more effective than some of the mushy ideas I’ve seen used on Gumotex IKs. KXone and Gliders use a padded strap.

In any kayak, a solid footrest helps you connect with the boat and pull in powerful strokes. And as an IK doesn’t have the benefit of a hardshell deck to brace knees off, a solid footrest is all the more useful. Even then, I’d say all these DS IKs would benefit from thigh straps, especially the reportedly tippier ones like the Razorlite. All boats are relatively spacious inside, with little chance of feeling nicely wedged in, as in a packraft.

The KXones pictured left have optional removable decks. Once you realise this boat is as rigid as a sea kayak but with no deck, adding one (or at least some sort of deflector at the front) may be a good idea for managing bigger waves. A regular IK will bend with waves – a stiff DS IK will cut in and may swamp, especially if loaded.

Over in Canada IK World ran a comparison between her old style DS-floored Sea Eagle FastTrack and the 393 solo Razorlite, as well as giving a fuller recreational review of the 393.

You may like to scroll down and read some of the reader’s comments about issues and returns they’re having with early Razorlites. She mentioned the new DS boat was less stable, but to me the ‘stability’ of the yard-wide FastTrack is beyond the pale.
About 76cm on the 473 is still 30-inches and I felt quite safe in my 69cm-wide K40 right up to the point when it was coming in over the sides (thigh braces helped greatly, I admit). 

Some boat specs

Sea Eagle’s 473RL RazorLite was the first FDS IK and the double is 4.73m (15.5′) long and just 76cm (30″) wide. Weight is claimed at just over 17kg (38lbs). The DS panels run at 10psi (0.67bar) and are 10cm thick, giving a massive claimed payload of 340kg.


KXone’s Sliders (right) are designed in Germany but made at the same Chinese factory in Weihai for Woosung in Korea and are rated at 8psi (0.55 bar). It’s unclear if all current Sliders are now FLex models with the removable floor and keel tube option (as described above), or if FLexes sit alongside the regular flat-fixed-floor Sliders.
Slider 445 (14′ 7”) • 85cm (33.5”) wide • 17kg • 225kg
Slider 485 (16′) • 85cm (33.5”) • 20kg • 250kg
Slider FLex 485 80cm (31.5”) • 20kg • 250kg

BIC Yakkair Full HP 2  4.1m (13.5′) • 85cm (33.5”) wide • 15.5kg • 210kg • 8 psi. There’s also a 4.8m HP3. see video below.

DS Kajak’s extra-long 10psi Airtrek FLex 515 (below) is a slender 78cm wide and weighs 22kg with a claimed load of 300kg. DS Kajak also make a 465 FLex.


You notice the two flat-floor Sliders and the BIC are wider than a Sea Eagle RL, for example. This is because they’re pitched as SUP IKs, in that you can stand in the boat and work that core (left). With the popularity of iSUP boarding, this is a clever gimmick. But sit-down paddling performance will suffer. Me, I’d sooner have a slim kayak.

Lined up against my regularly updated IK compassion table (below), all those dimensions are very much in the ballpark, with the long Airtrek 515 getting a very high L/W Index of 6.6. The DS Kajak 515 is over 2 feet longer and as slim as my old Seawave (among the faster touring IKs). The short and wide BIC HP2 comes in at 4.82 – not so good and a bit more than a ‘hybrid’ Thaya.

Good on all these brands for upping the game with their takes on full DS IKs. It’s a big step in making IKs less ‘bloat’ and more boat. Many people commonly mistake them for hardshells. I’ve yet to be convinced, but then I’ve yet to try one.
Having spent weeks and months looking at loads of images and videos of all these boats, at the moment the 20-kilo DS Kajak 465 is the one I’d choose. Pictures seem to indicate a better build quality than most, the removable floor is important for proper drying and cleaning, it’s no wider but half-a-foot longer than my old Seawave and graphics-wise, it doesn’t give me a migraine. But without the chance of a test paddle, €1300 is a bit of a gamble.
Whatever you get, make sure you fully understand any possible drying and grit-trapping issues unless you live in a spacious villa in sunny Tahiti and plan use your boat regularly. Not everyone may see this as the deal breaker I make it out to be.

Spotted a mistake or have something to add? Your comments are welcome below.

18 thoughts on “Drop-stitch Inflatable Kayak Buying Guide: Razorlite, KXone, Tomahawk, Yakkair

  1. petethecat91

    Thanks for all the advice on the purchase, and the maintenance of the boat. I will certainly inform you on the quality and handling of the boat, whichever model I choose. And also, if I figure out some more practical way of cleaning/drying the boat, I will certainly share my knowledge here. I am usually skilled at these “life hack” activities, and will study the boat and all its possibilities thoroughly when I get it :)

    I have one final question on the topic in which you have a lot more experience. Is there a usual price oscillation from this moment to the next summer?

    Having in mind that there is a slim chance they will deliver my boat in time to do any serious paddling this fall (though you never know how the weather will be like, I have some nice thick neoprene that I used for sailing), I was wondering would it be better if I wait until the winter before I order, or does the price remain more or less the same throughout the year? For used boats I am sure this is the case (i.e. prices oscillate), however, I don’t know whether manufacturers/retail shops drop their prices during winter?


    1. Chris S Post author

      We all look forward to reading impressions of your new boat ;-)
      Regarding price: demand far outstripped supply this summer, though I still don’t understand why it’s taking everyone so long to catch up. Maybe the whole supply chain got disrupted. As a result, I don’t see prices going down (Gumotex are going up 15% in 2021, fore sure), nor will there be many big, end-of-season clearance sales as there is nothing to sell.
      So, apart from tracking private / used sales on eBay etc, I would buy when you can.


  2. petethecat91

    Hello to all fellow water sports enthusiasts (I am not saying fellow kayakers, because I am still not experienced with kayaks, however, I practiced both rowing and sailing in the past, so I am not a complete noob when it comes to boats 😊

    Firstly, I must say that this is the most serious and comprehensive article on this subject I have found so far, and thank you for your knowledge you have shared here.

    I would love if you could advise me on two models of full DS IK I am considering whether to buy at this moment.

    First one is the Aqua Marina Tomahawk Air C, which I can get for around 880 EUR, and the second one is the BIC YakkAir full HP3, which I can get for around 1.200 – 1.300 EUR (both boats are new).

    My question basically is – is the HP3 so much better to justify the around 400 EUR price difference, or if you put it the other way – is the Tomahawk so much lower in quality to justify this difference? I haven’t seen any differences in specs which would indicate this, and the basic construction of both boats seems pretty similar to me, i.e. I don’t see any feature of ether boat as advantageous compared to the other one (except the obvious price issue).

    I am asking this question especially because you mentioned the Tomahawk in your article: „There are others sold on eBay, some offered direct from China where all FDS kayaks are made. Aquamarina Tomahawk is one“….

    Thank you for your help, this is the only way for me to make a decent judgement, having in mind that I will not be able to see ether model live, before I order it.


    1. Chris S Post author

      Glad the article was useful.
      The 400 euro question may be partly explained by BIC being a long-established French brand with boats made in Vietnam, not China. I get the feeling the sides of the Tomahawk Air C may be higher and, according to the data, the Tomahawk is 24 kilos vs 19 kilos BIC. This may not be accurate but I read this extra 5kg with the Tomahawk adds up to a pretty bulky boat to transport and so may be one that uses cheaper, bulkier materials.
      Not being able to see let alone try an expensive IK is always a problem. If possible, buy from a place that lets you return it for a full refund if you don’t like the look of it.


      1. petethecat91


        Thank you very much for your quick reply.

        Yes, I can see how BIC`s “tradition” and “brand name” can add up to price difference, however having in mind such a big price difference, I was frankly concerned that maybe Tomahawk is notorious for unreliability or something similar, that was the main reason for my question. This is specially the case because I also read the article you were referring to, about the guy who bought the boat directly from China, and was pretty satisfied with it. When I saw how cheap it was for him (below 500 EUR if I remember correctly), I thought to myself – why would I pay a ton of cash just for some brand name if there is no big difference in quality? I am not into that, and would be perfectly happy with a total no name boat, if the quality is good.

        The interesting thing is that I found the Tomahawk on the DS Kajaks web page, so I guess they are related in some way? Of course, I was searching for DS boats on the page, however, all the DS boats that are interesting to me are out of stock.

        As for the added weight, I am not so concerned about that, having in mind that I am 191cm tall, and weigh around 90kg (6ft3in//198lbs for all you imperial unit fans), and I am not planning on walking long distances with this boat on my back. If I am persuaded that Tomahawk`s quality and durability is comparable to BIC`s, I would really be indifferent to the weight difference.

        And for the end, one question that may be stupid, or may drive you to thinking (not sure if anyone tried this, or if it is doable). I see people complain about the DS floor which is not removable, nor completely sealed to prevent water/grit getting into space between the side panels and the floor. From the pictures I saw, they usually seal the space between side panels and floor partially, i.e. they leave an area at the bow and stern of the boat unsealed. As I don’t see any special purpose for this partially sealed panel connection for the boat integrity, why not try removing it altogether to make the boat easier to clean? (ether by cutting it, or in some more sophisticated way). I mean, there are boats with completely removable floors, which tells me that this point (where sides and the floor touch) is not a particularly “stress bearing” part of the boat, and if any more solid connection (if any is needed at all) is needed at this point, you can solve this by installing several good quality Velcro straps on parts of the side panels, and the flour, which would keep them together. In this way, I think you would get a boat that is much easier to clean and dry (even without completely removable floor).

        I don’t know if my idea makes any sense, I was thinking about the problem because both models (HP3 and Tomahawk) which are available to me have floors which are not removable.


      2. Chris S Post author

        I too would be happy to take a chance to try an unbranded and no-warranty FDS IK if the price was right. There is one on ebay UK right now trying to pretend it is a Sea Eagle Razorlite.
        Not surprised to hear Aqua Marina and DS Kajak and Kxone and maybe more are all made or owned by one Chinese factory. You can read a Tomahawk review here.
        I think if Tomahawk had a bad reputation we would have heard about it pretty soon online.
        I have only seen this name is the last year or so. The question with all these FDS IKs is how will the PVC last compared to a synthetic rubber IK. Maybe with occasional summertime use and good care it does not matter so much.
        I am pretty sure any fixed FDS floor is glued to the outer 1000D PVC shell which usually has the drain. So to separate it would be quite a task. You would pass out from the solvent fumes before the job was finished ;-)
        I think with an FDS, a removable floor (combined with the inflatable keel idea) is well worth it.
        Maybe these ideas will percolate down in years to come.
        But the issue is only really drying and cleaning. Do that well enough (especially before long-term storage) and a fixed floor FDS is not really such a big problem.


  3. Andrew Cassely

    I recently bought myself an Aqua Marina Tomahawk Air-K 375, after floating around on a cheap IK (Bestway Hydro force) over the summer. The choice was partly driven by availability – the Tomahawk was still on sale where others had sold out, perhaps because it was specifically listed as an intermediate to advanced kayak, while beginners are driving the shortage.

    Overall I am pretty satisfied with the boat, though it’s not perfect. It comes in a fairly hefty package, but it is managable for myself, an average fitness male – smaller people and/or those with less strength may struggle a bit. The bag fits well, and it technically a backpack – I wouldn’t want to go far with it, but it works sufficiently well to get it out of the flat, down the stairs, and into the car.

    Some work is required for set-up – the pump is effective but needs some oomps towards the end when apporaching 10PSI – I may invest in an electric at some point. In fact the hardest bit is fitting the twin skegs – these are very stiff, and it’s difficuly to apply pressure to a very thin area. I may need to take some sandpaper to get these to fit better, though I’ll try some silicone grease first. The Seat and footrest are effective, a little strap threading is needed for the latter nothing terrible. The seat straps keep their length once set up, but the footrest doesn’t. Total setup time is about 20 mins, though that may reduce as I get more familiar with the kayak.

    On the water it is a step change from the basic inflatable, though you’d expect that based on the price!. It’s much faster, tracks amazingly well, and is a lot less tiring to paddle. The addition of an entry-level carbon fiber paddle provides a lot of range before fatigue sets in (though I still need to improve my stamina!). It turns relatively slowly to compensate, but I’ll take the better tracking any day. On the flipside it is a lot less stable (I’m 77kg). I’m constantly working to balance it, though I think more use will see that become less of a worry. Once or twice I’ve almost felt like I’ve gone over, and had a wobble. However I think I’m actually a little better off than it seemed – I deliberately flipped it to ensure I could re-enter and it took more leaning than when I though I was going over to get it to flip. It is probably not suitable for beginners whose balance is questionable though. Re-entry was a little tricky put perfectly doable.

    Packing up is reasonably quick – note that I do it with minimal drying on site, then re-inflate it fully once home to give it a proper wipe-down and time to dry. The drainage issue mentioned in the article is definitely evident – it’s basically impossible to get every last drop of water out, though I’d say no more than a tablespoonful was left which is not terrible. The joins between the floor and the sides also tend to attract sand and grit – the wipe-down gets rid of most, but I suspect at least a little is starting to build up there, though I don’t know how much of an issue this is in the long run as they shoudn’t move past each other.

    Despite the ‘Intermediate to advanced’ labelling, I think a beginner wanting to move on from an Intex or similar could do worse – as long as they have at least a modicum of balance and confidence.I don’t think it would be for everyone though, as there are definitely more stable kayaks out there for those who need it. Overal though I’m pretty pleased with with the Tomahawk, and hope the construction is good enough to provide many years of kayaking to come!

    Liked by 1 person

    1. Chris S Post author

      Thanks for your detailed and thoughtful review, Andrew. If you can send or point to a couple of photos, I can make it a more visible post here from which many more will benefit. The AM Tomahawks have been one of the least expensive and available FDS’s this summer – yours still on amazon at £650.
      I was just reading an owner’s review on a German forum this weekend with very similar conclusions. He bought it off an old couple who couldn’t handle the tippiness. It’s important to note widths, especially on these FDS boats. They can vary by over 20cm or 8 inches (20-25%) and your 375 Tomahawk is very narrow at a claimed 72cm/28″. Much depends on if the sides flare outwards too, meaning the actual floor is narrower still. I know well there is nothing worse than feeling insecure in a kayak!
      He also mentioned transportation bulk (a recurring feature with FDS).
      Any good SUP pump should easily manage 10psi – a decent electric is quite an expense I’m told and means you need to inflate near the car.
      I noticed the skeg was also very stiff on the new Moki II we rented recently. I’m sure it will loosen up, or give it a shot of lube, like you say. You are quite light which I think can exacerbate tippiness as the boat bobs higher. What you describe sounds like poor primary (upright, stationary) but good secondary (leaning over) stability – you can hold it there with a brace paddle stroke: a characteristic of a proper hardshell sea kayak. A typical all-tube IK has such brilliant raft-like primary stability that you never get to discover secondary. That’s why beginners and me love them.
      Try it with a couple of bags of water at each end (rocks worked for very light g/f in a tippy Safari one time). Or, fit thigh straps: much better control. (I bet your average hardshell sea kayak would be unusable if you could not brace knees under the deck.)
      Also, I would be interested to know if it really needs theat frontal skeg to track well. Twin or even triple skeg become a thing on some DS IKs – a bit like razor bladers. I bet it would turn better with just the back skeg. At sea you may want both skegs as the sides look quite high to the wind.
      Drying and drainage; well, extra effort/time needed but a lot better than a fabric shell bladder boat.
      Stick your Bestway on eBay quick – you may get more than you paid for it!


      1. Andrew Cassely

        Thank you! I’ll take some pics next time out, and give some extra ballast a go!
        I’m only paddling in the Broads, no plans for sea paddling at the moment.

        I was actually thinking the same thing with regards to the double skegs, so last time out I removed the front one. Turning was a little easier, but the tracking was noticably less effective (though still far better than the budget IK). In the end I decided I preferred it in, plus it’s reasonably heavy and right at the bottom of the boat and so provides a bit more stability. It would work fine without through – more a case of personal preference either way I think.

        It is noticably tricky in the wind – because it’s relatively light I lose more performance in a headwind than a friend with a Point 65 sit on top. In crosswinds the high sides catch the air, and stability is noticably lower in a gust…

        Liked by 1 person

      2. Chris S Post author

        Looking forward to some pics.
        With the front skeg, you might try chopping it down a bit to find a happy medium.
        It may be a generic Chinese skeg so you can buy spares on eBay.
        The flat sides of FDS IKs are another thing that puts me off, though some are = higher than others and it’s no worse than a hardshell canoe.
        Width has a bearing, but your so-called hybrids – tube sides; DS floor – may be better in the open or out at sea (which I’m more into these days).


  4. Chris S Post author

    Kevin A adds:

    Hi – I enjoyed reading this article because it is actually quite difficult to find a detailed discussion about the still-new dropstitch construction method. Around ten years ago, I acquired a couple of Walker Bay Airis dropstitch inflatables which, at the time, were at the forefront of the then brand new idea of dropstitch construction. Both boats have been brilliant but one of them has become porous and is no longer reliable for more than a few hours and so, a couple of months ago, I started to look around the market.

    The first thing I discovered is that covid19 has created a world shortage of all sorts of recreational equipment and that prices have risen accordingly. Right now, a decent dropstitch boat, if you can find one, is stupidly expensive. I eventually found (and bought) a Bic Yakkair HP1 which, so far, I have used only once because I am waiting for delivery of a new paddle which will allow me to switch between kayak paddle mode, canoe paddle mode and SUP mode. I think that dropstitch construction has blurred the distinction between canoes, kayaks, sit-on-tops and boards.

    I think that dropstitch construction is, for most people’s purposes, capable of matching traditionally built hardshell boats in terms of performance but we need to be careful about what we are wishing for. My new Bic Yakkair HP1 looks brilliant when it is inflated and it seems to handle very nicely indeed on the water but, despite being much the same inflated size as my Walker Bay Airis boats, it is much heavier and much bulkier when deflated. Dropstitch construction is now offering boats of around 16 feet in length but, even when packed down, they are huge and very heavy. If the idea is to take one away on holiday with you, then you might be better with a hardshell on the roof rack instead of a 16 foot dropstitch taking up all the luggage space in the back of the car.

    A feature of dropstitch inflatables which I have never seen mentioned elsewhere is that, because the fabric has a tiny amount of ‘give’, they are a lot more comfortable to sit in than their hardshell equivalents


      1. Marco Beaumont

        Hi. I would just like to buy something I have heard of, or something DS mentioned here. Decathlon are listing BIC but no stock. The ones on EBAY i have never heard of. Any suggestions? Regards



      2. Chris S Post author

        There is a BIC HP on amazon for 900 quid. Otherwise, ask about a guarantee and get something with a 30-day return so if it looks terrible and goes flat overnight you can send it back. That’s unlikely as they’re all probably made in the same factory but with different features and of course labels.


  5. Stuart Holmes

    Thanks for the excellent report, we have just bought one of the new (2019) versions of KXone Slider Flex 485 and have already had some fun trips around the Scottish coast. We did get quite a bit of water in on a particularly rainy and wavy day and are looking at getting a spray deck to prevent spray and waves getting in. How do they work for attaching along the sides of the boat and are they still susceptible to waves getting in the sides? Do you think they are worth their weight or are we better to just bail out when necessary?


    1. Chris S Post author

      Hi Stuart, congrats on your new boat. Is the 2019 any different, or just graphics? It looks like there are tabs along the sides. Possibly glue-on velcro? So it won’t be a full seal but better than nothing. A deck ought to keep you drier but I find [usually out alone] that if it’s choppy enough to be coming over the sides more than a little then it may be too windy to be out in an IK.
      Also, there do not seem to be any supports visible to keep the deck convex so water rolls off. You definitely want that so you’re not to be distracted doing it yourself. Maybe knees will do? (see added picture of decks, above)
      As expected, I did not get on with the deck on my Seawave. I like the ease of getting in, wear a drysuit if needed and come back if it’s too gnarly., but not all think like me. Much depends on the cost and effectiveness. A bilge pump will be a handy accessory, either way.



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