Hyperflex Wetsuits Cyclone 2 4/3mm GBS Full Suit Should fit snug, but not too tight PERFECT FIT: Constructed with 100% Neoprene for an unbelievably stretchy and lightweight wetsuit. INSULATION: The FireFleece insulation fabric is designed to keep surfers and water sport athletes warm in any temperature water. MULTI-SPORT: Designed for all water sports including surfing, paddleboarding, windsurfing, water skiing, wakeboarding, etc. RELIABLE WETSUIT: Designed with a Cocoon-BZ Entry Point & Closure System to keep surfers dry.