Soft cotton comfort Provides unique protection required by various water sports Stability anchor on waistband provides support and lift Cool, breathable stretch mesh pouch is moisture-wicking 1 1/4 inch logo elastic waistband for wear with a swim trunk 3/4 inch elastic 2 back straps No bottom coverage Specs based on size M The Bike 2-Pack Performance Cotton Swimmers Jock Strap, from the Bike athletic men’s underwear collection, is a super-comfortable support system with a narrow waistband so it is perfect under a swim trunk. It offers the necessary support and protection demanded by a variety of water sports. Made from a breathable stretch mesh fabric, this Bike jock strap keeps you cool during your training session. The Bike 2-Pack Performance Cotton Jock Strap features a stability anchor at the front of the waistband for added support and lift. Material: 55% nylon, 25% rubber, 20% cotton, waistband: 70% polyester, 30% rubber