See also this

News of the new
Gumotex Twists made of slicker, full-coat Nitrilon Light came out in 2015. Then in 2017 they dropped that fabric and returned to regular tough Nitrilon. Weights went up, so did the price, but the boats will be bombproof which you could not say for the original models. The 3.60-metre T2 double (left) now goes for £500 and weighs 13kg. The 2.6-metre T1 (green, left) costs £400 and weighs 9kg. This >2018 model should have three pairs of D-ring seat mounts on the hull top.

Both come with proper removable and adjustable seats and footrests. On the original Twists both these things were regarded as cost and weight-saving measures and even though the boats were very light a mate who has both found them not at all robust (he’s since bought a T2) Now with the slick fabric coated on both inside and out, the boat ought to be tougher and will certainly be much quicker drying.