SumacLife Adjustable Neoprene Running Sports Armband Case for Samsung Galaxy S4 and S3 (Blue) Full screen protector allows full touch screen functionality Provide excellent protection during sport, such as running, biking, jogging, walking, working out etc. Adjustable Touch fastener arm strap. Arm strap dimensions: 11' - 16' in. Keeps device dry while being active with sweat proof feature. SumacLife hardcore workout armband with key slot and earphone cord excess holder