SumacLife Meshy Outdoor Sports GYM Armband Case for Samsung Galaxy S4 / Samsung S3 (Grey and Black) SumacLife hardcore workout armband with earphone cord excess holder 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. Mesh armband ,breathe freely.