Aqua Sphere Size Chart Speed, buoyancy, flexibility, and warmth are all achieved excellently in the Racer wetsuit. Uninhibited range of motion thanks to Bio-Stretch technology and proper technique enhancement with the Auto Positioning sleeve, make this wetsuit a top performer. Features: - Bio-Stretch Zone: Strategically placed 1mm stretch zone - allows for max range of motion - 5mm Aqua Drive core body panel maximizes buoyancy and reduces drag - Aqua-Grip cuffs and Aqua-Flex collar seal to keep water out - Quick-release ankle transition panels - 5mm Thermo-Guard core body panel to retain body heat - Power-Zone forearm panels increase traction during the pull phase of your stroke - Super stretch, SCS-Coated Yamamoto 39 Neoprene - Quick-drying - 100% UV protection - Easy-pull deep back zipper