General Spec Type skin case Color black Function decoration, non-slip, waterproof, dustproof and shockproof Compatibility iPhone 4G Features High quality fashionable sports arm band case for iPhone 4G. Protect your iPhone from scratch, dirt and bump. Unique design allows access to all functions easily without removing the case. Adjustable velcro armband let you carry your iPhone in a variety of ways. Flexible velvet material makes you comfortable to wear. Convenient to wear with daily workout, exercise, or any physical activities. Perfect fit for personalizing your cell phone. A good choice for your iPhone 4G.