Double Ring closure 80% Polyester, 20% Spandex lycra fabric technology designed for great moisture control Prevents water sweat flow Elastic Cuffs also features a workout for a snug fit BBB Sports Arm Sleeve is created with an innovative 80% polyester, 20% spandex lycra fabric technology designed for excellent moisture management. BBB Sports Arm Sleeve prevents sweat water flow. The BBB Sports Arm Sleeve elastic cuffs also feature a workout for a snug fit. Flat seams to help reduce irritation. Reflective armband element ideal for baseball, basketball, training in low light conditions. BBB Sports Arm Sleeve provides UV protection for athletes' skin. Multiple uses Ideally used for baseball, basketball, boxing, cycling, fitness, soccer, golf, gymnastics, mixed martial arts, track and field, soccer, softball, tennis, track and field and volleyball. Sold individually.