Description of Oneill Hammer L/S 2mm Spring Suit - Youth Redesigned from the ground up for 07', The Hammer is far from just another Flatloc suit. Constructed of 100% FluidFlex™, O'Neill's new and exclusive high-stretch neoprene, the hammer series now provides completely unrestricted movement and a perfect fit. Features: 100% FluidFlex™ Seamless Ultraflex Paddle Zones GBS Collar: Stitch and Chafe Free Back Zipper for easy on/off Wind Resistant Smoothskin Chest and Back SuperSeal Collar TFX Torso Flex Flatloc stictched-breathable seams, non-chaffing Hidden Key Pocket 3-q Blackout Zip Anatomical Flex Points Back Zipper Durable Exterior Flatloc Stitched FluidFlex™ NEW Lightweight & Durable Single Lined Fluid Foam Super Seal Neck Ultraflex DS Wind Resistant Glideskin Temperature - Cool