Meet the high-performance iCOOL® Castle Peak TPU Backpack! This rugged 35-liter backpack is constructed with welded 420D TPU and its waterproof roll-top design ensures your belongings stay well protected and dry during all your adventures. The spacious backpack compartment features a large mesh pocket and the exterior side mesh pockets and zippered front pocket provide extra storage for your gear and hydration accessories. The padded backpack straps and padded panels on the backside provide comfort and airflow and the sternum strap offers better weight distribution for heavy loads on long trips. Stand out from the crowd with this understated utilitarian bagwear. A portion of all proceeds is donated to Shelter to Soldier™, a non-profit organization that rescues dogs to train as service animals for veterans in need.