Tag Archives: Gumotex Solar 405 kayak

Gumotex Solar 410C – the new Sunny

Gumotex Solar 410C – from 2017 it became the Solar 3
410cThe Solar 410C was a step up from the short-lived, fixed-seat Solar 2 (below). The price in the UK with two seats and a skeg was £470.
It became for all intents and purposes the new Sunny, because the old discontinued 405 Solar and Solar 2 were usefully long touring boats ruined with terrible seat designs: either the original space-wasting thwarts (at least they were replaceable) or worse still, Helios-style fixed seats in the half-coat (Lite Pack) Solar 2 – the pits!
Luckily, the Solar 410 ‘C’ (for ‘Convertible’) has two or even three seats which can be removed and one re-installed the other way round to make a big, single seat kayak with lots of room for stuff – nice. You 410prvalso get adjustable footrest pads (see here for a lighter and simpler idea), a bit of a half-arsed cargo net in the back, and I see a floor PRV in the video below (still, right). Gumotex never seem to mention this useful feature, but of them I am a big fan.
If not included, the black plastic skeg might be extra (and is worth getting). On the 410C you don’t need a skeg-mounting patch at both ends because unlike a Sunny, you simply move the seats forward or back on the D-rings to change configurations, not turn them the other way. In the unlikely event your 410C doesn’t have a skeg patch, it’s not so hard to glue one on.

The stats for the Solar 410C are 4.1m long (Sunny 3.85m); 80cm wide (Sunny 77cm), weight 17kg (Sunny 16kg) and payload no less than 270 kilos (Sunny 180kg). With pressure still at 0.2 bar/3psi, that looks to be quite a jump in payload for just a little extra volume. If you can imagine three of me sat in the new Solar, that equals 270 kilos – the slightest wave will surely swamp the boat.
But one thing I do wonder with a 410C (and why I got a Grabner instead, even at nearly twice the price), is that with my weight I suspect the longer hull would flex even more than the Sunny. This was why I moved on from the Sunny after many years, although here I discuss ways of getting around that flaw.

Old Gumotex Solar 405/ Solar 2
The original, pre-2007 Solar 405 (left) was similar to a Sunny of the time with a usefully longer payload or tandem paddling. But it used space-wasting thwarts (fat air cushions) for seats. For that reason a Sunny was always better solo touring choice at the time>
The post 2007 ‘Solar 2s’ (right) became even less versatile: horrible fixed seats like the Twist and Helios may give great support, but along with fixed footrests it all means it can’t be set up optimally for solo paddling without chopping it all out.
As on all post-2007 Solars for a while, only the outer wet surfaces were coated, and then the Solar 2 was dropped in favour of the broadly similar but more popular Sunny MkIII, the semi-decked 3.8-metre Helios II (also with fixed seats and decking) or even the shorter Twist I. By 2013 the 410C set things straight again.

Gumotex (Innova) inflatable kayaks

“My solution: Gumotex Solar 410C … the difference is ludicrous!”
Happy Gumotex owner after running a Sevylor Hudson for a few years.

Great website – what a wealth of information. I wish I had read it before buying my Sevylor Pointer K2, I would have bought a Gumotex. Never too late; it just costs you more. Anna M.


The Gumotex kayak above looks similar to the Austrian Semperit Forelle from around that era.


For my sort of paddling the Czech-based Gumotex make the best-value, proper IKs (in North America they’re branded ‘Innova’). Starting in the 1950s and capitalising on new, rubber-coated fabrics, along with Semperit, they were among the early innovators of IKs (Zodiac, in the 1930s, made the very first).
Now all you have to do is see if Gumotex have an Ik for your needs. Gumotex also made some expensive, high-pressure, white water models, such as these raft-wide Ks.


In 2011 they stopped selling the Sunny in Europe. The 25cm longer, but otherwise similar Solar 410C took its place and in 2017 that became the near-identical Solar 3. In 2019 it got renamed the Solar 019 alongside a similar new model called the Thaya with a rigid dropstitch floor.
Hybrid dropstitch hulls using their rubber-based Nitrilon fabric looks like the new direction for Gumotex IKs. The same durability but better performing boats which glide like hardshells but roll into a bag. The Rush models of 2020 took this a step further.

Compared to some IKs, Gumotex are simple, robust, slim like a kayak not wide as a raft, and are gimmick free. Over the years the design and fittings have been refined: better skeg fitment, better removable seats (but still heavy), better valves, while in most cases keeping PRVs in the floors. The current Nitrilon feels lighter and more pliable and now there are fitted or removable decked boats like the SeawaveFramura and Rush.
The sporty Safari (with a 330XL version) the Solar 3/019 as well as the Framura and the versatile Seawave are all great touring boats, while the Nitrilon Twists are light rec boats.
I haven’t owned or tried every Gumotex IK mentioned here, but in most cases know people who do- or have. The video below shows what sort of whitewater fun you can have with Gumotex IKs and even canoes.


Gumotex IKs are what I call ‘tubeless’. There’s more here but in short this is the ‘European’ way of making IKs with no ‘inner tube ‘bladders’ supporting a hull shell. Instead all the sections are vulcanised in an autoclave and glued up to make a sealed inflatable vessel, like a packraft. (In the US, Sea Eagle make their Explorer IKs the same way, but use PVC). It’s expensive but has advantages over the the more common bladder ‘inner tube’ boats, principally in quick and easy cleaning and drying.
Gumotex IKs are made from Nitrilon, their own version of DuPont’s hypalon: the original tough, EDPM-like synthetic rubber-coated fabric as used on white water rafts and
which lasts for decades. (Grabner, by comparison, buy in their EDPM from Germany). In 2007 Gumotex introduced LitePack (later called Nitrilon Lite) on lower-end IKs like the Twists, with the rubber coating only on the outside of the hull. It saved weight but boats proved to be less durable and Nitrilon Lite was quietly dropped in 2018. (A mate of mine has many failures with his Lite Twists).
As mentioned, the current Nitrilon (as on my Seawave) feels thinner and more supple than the original less shiny and stiffer Nitrilon of the Sunny era.

One thing you should know with Gumotex IKs is that all except the Seawave, Rush (and the Ks) are rated at 0.2 bar or 2.9psi, something for which a Bravo footpump can just about manage. This is more than cheaper bladder IKs which run just 1psi before they blow apart. However, Incept and Grabner run super-stiff 0.3 bar and of course dropstitch technology is changing all this.

I’ve read of Gumboaters running more than the recommended pressure in the side tubes to make the boats stiffer and more responsive. I suspect they could take it, as long as they don’t get too hot when left out of the water. Running at the recommended 0.2 bar pressure can mean that when a boat is over 3.5m long – like the Solar – it will flex in the swell or on rough water. This was a nuisance with my Sunny in roughish seas because it swamped over the sides. Fwiw, I ran my Seawave side tubes for years at 0.33 bar – 50% more than the recommended 0.25. I had no problems but importantly, I added 0.33-rated PRVs so that the sides would purge air if they got too hot.


On flat water, long boat flexing can mean reduced speeds if you’re heavy like me. Apart from going on a diet, I considered various ideas to fix that in my old Sunny (which I took back in 2020), but in the end settled on a Grabner Amigo, a basic boat best described as a ‘high pressure’ Sunny. It was solid as a brick, but expensive. I sold the Amigo and from 2014 ran a Seawave which I adapted in various ways, including running over-pressure side tubes, as mentioned.

For waterside holiday fun to longer touring expeditions, you can’t go wrong with a Gumotex IK. Prices have got high and used boats are very rare, but I much prefer the tubeless design and durable rubber fabrics to anything in PVC, let alone bladders, as well as the solid improvements they’ve made over the years.

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