Revolution Chest Zip Short Sleeve Full Suit, 4/3mm Premium AX1 Super Flex Neoprene is Ultra Lightweight and Super Durable, Features Hollow Fiber Chest and Back Panels, Dislocating Chest Zip Entry, Dry Stretch External Jersey with GBS Sealed, Machine Applied Internal Pressure Bonded Stretch Tape. Minimal Seams for Maximum Flexibility. Revolution is where Style Meets Performance.