Gymboss Sport Armband for Galaxy S4 - BLACK Designed specifically for the Galaxy S4 which allows for full, unobstructed access to all phone controls during use. Also available in Pink! COMES WITH TWO heavy, adjustable wide velcro armbands (small and large) which will assure a comfortable, no slip fit. The high quality silicone protective case keeps phone securely in place during activity. Large strap fits arm size 10 to 21 inches (25 to 53 cm). Small strap fits arm size 6 to 13 inches (15 to 33 cm). Quick and easy insertion and removal. Silicone case can be used as protective case by itself. Hand washable.