Your adventure dog needs to keep hydrated. The Voyager CanteenTM is a BPA-free bladder that comes inside a handy ripstop shoulder bag. Ditch the wasteful water bottles and go green with this reusable solution. Pair it with your favorite dog travel bowl to give your dog a drink on the trail or walking around town. Holds 32oz Rip-stop nylon BPA-free polyethylene bladder Comfortable and adjustable shoulder strap Slot for poop bag dispensing Two storage pockets, one with zipper for keys, a map or treats To keep bladder clean, regularly wash bladder and thoroughly dry before storing. Bladder can also be stored in the freezer which will keep bacteria or mold from growing in it.