This Drybag is a waterproof bag utilized for multiple purposes. Has a roll n' snap feature for closing the bag and making sure water doesn't find it's way in. Equipped with a special valve to compress the packing volume. Comes with a removable shoulder strap, opens all the way from one end to the other, and made of abrasion-resistant Cordura fabric. Recommended accessories are tension belts, rear rack enlargements.