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. The Aquasphere Pursuit has a 4mm 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.