The Ironman Aqua Sphere Powered wetsuits are designed in conjunction with leading triathletes, including Ironman world champion Faris Al Sultan, to ensure maximum performance. Utilizing the highest grade materials available, these suits maximize efficiency through exceptional range of motion, reduced drag coefficient, and strategically placed buoyancy panels that support proper body position in the water, resulting in increased speed and reduced energy expenditure. Core manufactured with Yamamoto SCS Nanoskin and lower leg made of Polytex with Jet Microskin offering maximum flexibility and ease of movement. 4.5mm Aqua-Drive core. Aqua-Flex collar for ultimate comfort. Power-Zone traction technology on the forearms. Aqua-Grip leak resistant cuffs. Chafe-Guard under the arms. Durable, deep-back pull zipper with leash for easy on/off and quick transitions. Includes protective carrying case/transition mat.