Sport & Running & Jogging & GYM Armband Case for Samsung Galaxy S3 & Galaxy S4 & Galaxy S5, Water Resistant & Sweat Proof & Built in Key Holder Slot (Purple) Compatible for Samsung Galaxy s3 S4 s5 active models I9500 I337 M919 I545 L720 R970 Built in screen protector allows touch screen function without removing phone Perfect for gym workout, running, jogging, and much more Adjustable velcro for different arm sizes High quality anti slip neoprene armband