The Tusk Dry Duffel is 100% waterproof and made of heavy-duty PVC material with high frequency welded seams to keep your equipment dry and protected. The PVC is a high quality material that does not stiffen or get more difficult to work with in colder weather or those early morning rides. This bag is available in two different sizes, so you can find the perfect one for your next adventure. -Dimensions: Width: 20 inch Length: 11.5 inch Height: 11.5 inch (with ability to unroll for added storage) Capacity: 33 Liters