HUUB Archimedes 4:4 Wetsuit The best wetsuit in our opinion ever created. The Archimedes (named after the great Physicists & Mathematician Archimedes & his Buoyancy principle) This suit quite simply delivers the buoyancy & flexibility that you would expect along with a host of benefits created by the experts in scientific & practical swimming development. Available in two versions, because we do not all swim the same. Presented in 3:5 & 4:4 versions for those with sinking legs & those with good body alignment. No other suits on the market today aids your stroke, kick & body position like the Archimedes. X-O Skeleton for body alignment & Buoyancy NBR X-O Skeleton for aided buoyancy (3:5 Version only) Bicep release for stroke efficiency Arm Crossover alignment for correct positioning & reduced snaking/ Fish tailing in the water Calf Release for enhanced kick, propulsion & circulation Break-away zipper for Transition speed The most flexible lining material