DRY SUIT UNDERWEAR MK 3 Sizes Available 2XS, XS, S, M, L, XL, 2XL, 3XL The MK 3 One Piece was built with Ice Divers in mind; it is the warmest of the Glacier series Thermal Protection System. Flex panels at the waist, shoulder, knees and sides provides maximum exibility. Zippered vertical Materials chest pockets. 1. Outer Nylon (with stretch panels). 2. Primaloft®. Large eece-lined hand 3. Inner Fleece Lining. warming pockets. Construction • Breathable, moisture wicking, insulating polypropylene Polar Fleece lining. • StormProof 70 denier micro-ripstop water resistant Taslon outer nylon.