Slide into the O'Neill Men's Hammer SS Spring Wetsuit and surf for hours without getting goosebumps. This 21mm springsuit features UltraFlex neoprene fabric throughout for stellar stretch, warmth, and comfort, while its Smooth Skin chest and back help block gusty sea breezes from chilling you to the bone while you wait for a set to roll in. Flatlock construction throughout provides leak protection, and a lumbar seamless design uses a single large panel in the rear area of the wetsuit to minimize water entry and maximize stretch. Nobody likes to feel constricted when they paddle, so O'Neill gave the Hammer strategic seamless paddle zones for unrestricted mobility. A back zip system and Glide skin and double superseal neck supply a fully adjustable watertight seal.