Mediabridge Armband for iPhone 4 / iPhone 4S ( Black ) - Model AB1 (Part# AB1-I4-BLK ) CONVENIENT OPEN FACE DESIGN: Stop fighting with cheap armbands that have vinyl plastic covering the screen which can make accessing your phones screen more difficult. AB1 features completely open & easy access to your phone's screen. AB1 also provides easy access to your phones other important features, such as the headphone jack, volume, power & home buttons. Please NOTE: To minimize sweat intrusion into the silicone case, AB1 covers the camera & proximity sensor. *This armband is not waterproof due to the open face design.* SECURE: Our thick, strong & flexible Silicone Rubber Skin is custom molded to fit your phone precisely & will keep your phone secure even during the most vigorous workouts. Silicone is deceptively strong so you can be confident your phone will not fall out. *Make sure to remove your phone from its case prior to installing in the Silicone Skin. STAYS PUT: High quality soft Elastic trap allows you to workout in comfort. Since the strap stretches, you can flex & relax your arm without worrying about the strap sliding. Strong Velcro keeps the strap at the level of tightness you choose. STRAP SIZE: Elastic Velcro strap comfortably fits small arms (9") to large arms (21"). If you have any trouble sizing your new armband to fit your arm perfectly, call, Email or visit our YouTube channel, MediabridgeUSA, for simple visual instructions.