Black-white Gym Running Sport Armband Case Compatible with Samsung Galaxy S3 Siii I9300 Durable and lightweight arm band will keep your Galaxy S3 safe and Protected. Sleek, low profile design. Adjustable Velcro lets you adjust your arm band for maximum comfort. Protects from bumps and scratches for Samsung Galaxy S3 i9300. Compatible with all carriers incl AT&T, Sprint Nextel, T-mobile & Verizon Wireless.