Kokatat worked with a trusted fabric manufacturer to engineer a fabric that would withstand immersion and wet flex, inherent to the rigors of paddlesports. TROPOS, a durable, multi-ply nylon Taslan face fabric with custom DWR treatment and custom urethane coating was the end result of the successful collaboration. Details: Waterproof and breathable. Lycra neck and wrist closures. Zippered mesh chest pocket with key lanyard. Adjustable drawcord waist. Factory sealed seams. Reverse neck closure: The neck closure has been moved to the rear for a more comfortable fit and an improved seal against splash and spray. The collar tab no longer rubs against the sensitive skin on your neck, but can still be opened for ventilation.