The SealLine Urban Backpack (also known as the Urban Dry Sack or Pack) is a waterproof bag built with heavy-duty, PVC-free material and welded seams to ensure complete protection from the elements. This robust commuter pack features a traditional roll-top closure for a secure, watertight seal and an exterior splashproof zippered front compartment paired with a textured grid block accent. Additionally, it includes a dedicated plastic light loop near the top center for easily attaching safety lights or small accessories. Preowned back pack in good condition with hole at the top(see picture). All straps work and adjust accordingly. #sealine #biking #commute #waterproof #outdoor