Oxford's Aqua Bags are one of the easiest ways to get your gear from A to B, safe and dry. They are made from tough PVC tarpaulin, which is welded to form waterproof seams. Great for commuting or packing additional belongings on a big trip this backpack is comfortable to wear and benefits from an Airtech back system which improves air flow circulation so you stay cooler. Its waterproof construction means contents are kept safe in any weather and the roll-top design with compression straps allows you to adjust its size to fit exactly what you need to carry. > 12 litre capacity waterproof backpack > Super lightweight rip-stop material > Roll top backpack with side compression strap > Waterproof rating IPX-6 > Airtech back system improves air flow circulation and comfort > Front external pocket with carabiner > Highly reflective details > Reflective loops at the base to attach tail lights > Carry handle > Removable padded laptop sleeve (22l only) >Approx size when filled: 43cm (H) x 32cm (W) x 12cm (D)