arena Powerskin Carbon Ultra One Piece Open Back Women's Racing Suit The X-PIVOT: a feature designed around the body mechanics to isolate movement in the upper and lower body. It increases efficiency and improves the position in the water. INFINITY LOOP with X-PIVOT The INFINITY LOOP: designed to help you hold a streamlined body position. It is a continuous tape that anchors on the muscle chain in your upper body for extra support. ULTRA-COMPRESSION PANELS The ULTRA COMPRESSION PANELS: designed to deliver targeted areas of additional compression on the inside of the suit.