Aqua Sphere Powered Racer Wet Suit Bio-Stretch Zone - Strategically placed 1mm stretch zone - allows for max range of motion Auto-Positioning Sleeve - 5mm band with visual cues - encourages a high elbow positioning on pull phase of stroke Aqua-Grip cuffs and Aqua-Flex collar keep water out with quick release ankle transition panels Thermo-Guard 5ml core body panel to retain body heat Power-Zone forearm panels increase traction during the pull phase of your stroke