1.5mm under arm thickness - for maximum flexibility. 3:3 buoyancy combination - for balanced buoyancy. Glide skin neoprene panels - for reduced surface drag. Scientifically researched neoprene thickness combination.. Specific panel placements - for flexibility and efficiency.. Speed cut ankle & smooth skin cuffs - for ease of exit.. Flatlock construction. The HUUB OWC Open Water Swimming wetsuit has been designed to offer fantastic flexibility while having the buoyancy required to give the most comfortable swimming position. The HUUB OWC Open Water Swimming wetsuit has been designed to offer fantastic flexibility while having the buoyancy required to give the most comfortable swimming position. 3:3 buoyancy combination - for balanced buoyancy. Scientifically researched neoprene thickness combination. 1.5mm under arm thickness - for maximum flexibility. Glide skin neoprene panels - for reduced surface drag. Specific panel placements - for flexibility and efficiency. Speed cut ankle & smooth skin cuffs - for ease of exit. Flatlock construction.