The waterproof material protects your things from water and sweat. It’s very suitfull for running or hiking with large place to put your phone, key, money and other things. Waterproof, dust-proof, sandproof, rain and snow proof, suitable for outdoor, rafting, beach, swimming pool, water park, water use, so that your mobile phone, camera, etc. can be fully waterproof protection, and free to enjoy the fun in the water.