DBPOWER Phone Armband Adjustable Sweat proof Sport Armband Case with Key Holder Slot for iPhone5/5s/5c/4s/4/Galaxy S3 1. SIZE COMPATIBILITY: Perfectly compatible with your iPhone 5/5s/5c/4s/4/Galaxy S3, or other same size phone. 2. QUALITY MATERIALS: Made of diving material, durable, waterproof, sweat proof. Gives you a comfortable sports time. 3. LIGHT WEIGHT & ADJUSTABLE: no pressure, just enjoy jogging, running, biking, golfing, and various sports activities. 4. SCRENN TOUCHABLE: Fully access to touch screen, easy to control and use, listen to the music, texts, answer calls. So convenient. 5. KEY HOLDER SLOT: never worry about missing the key. Gives your sports another guarantee.