100% waterproof, keep your items inside perfect and dry. Can put your mobile phone, MP3, PDA, camera, etc. into it. Protect your items from dust, water, snow, rain, just enjoy the outdoor life freely. With a hook to hang on your backpack or waist. Durable buckle can fix firmly. Easy to wash and durable to use. When not used, it can be rolled or folded, saving space and portable. An ideal product for your outdoor sports: river rafting, boating, sailing, swimming, and fishing, hiking, cycling, etc.