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. XLarge. Bust: 40in.-43in. Waist: 31in.-34in. Hips: 41in.-44in. Dress Size: 16-18.