Sporteer Sport Armband for iPhones and Smartphones with Otterbox/Lifeproof Case - Size S/M (Black) Zippered nylon pocket fits all iPhone/iPod touch models and most smartphones with Large Case such as Otterbox/Lifeproof Memory Foam Backing with contoured lines to form to any arm size Interior Moisture barrier to keep phone and other interior items dry Reflective Material on Strap and around device for safe night-time use Extra space inside for storage of credit card, cash, ID, Gel Pack, etc.