The Flex Racer X Fly Jockstrap balances style and performance. Designed for excellent support and comfort and is made from an ultra lightweight, moisture wicking mesh fabric. Made from 95% Polyester and 5% Rubber. Medium. Bust: 34in.-37in. Waist: 25 1/2in.-28in. Hips: 36in.-39in. Dress Size: 10-12.