This Extreme Dry Cellphone Bag has a single pocket to keep your smartphone isolated from other various accessories, such as keys, credit cards, that might scratch it. If you sweat a lot or run in bad weather, your belongings will stay safe! Our water resistant and proof design is perfect for being on the water, made of waterproof Polyester, with special-lockable notches on the top, this dry back will seal perfectly and keep your items dry and intact, prevents ingress of water or sweat effectively. In addition a transparent window makes it easier to use your phone safe and useable while in the bag.