Guaranteed waterproof protection for valuable electronics, with one large main roll-top compartment, the Urban has enough carrying capacity for a 17" laptop plus a bunch of other "keep-dry" essentials, the perfect solution for the "all weather" commuter. Padded reversible shoulder strap for left or right shoulder carry. Easy on/off over a helmet and fast strap tensioning with Kriega's innovative alloy strap adjuster, allowing access to the bag contents whilst wearing. The 100% waterproof main body has a 16 liter capacity with roll-top fastening. The internal white taped-seam liner makes finding kit easy and is removable for cleaning. A side pocket with YKK® water-resistant zip, perfect for quick access items. Inside flap mesh pocket with YKK® zip, designed for maps, documents and cables. Grip fabric on the back helps keep the pack in place when riding.