A 100% waterproof big travel bag for either motorcycle (rear bag) or ATV (front/rear bag), made of 420D Nylon double-sided PVC Coating. Fastened with PVC watertight zipper and 3 fold on top to secure watertightness. SW90 includes a large breathable and zipped pocket to store all the wet stuff and 5 large compression straps. Moreover, it offers a waterproof valve to get the air out and make it more adjustable. SW90 can be carried in different ways, thanks to the 2 rubber handles and 2 adjustable shoulder straps cushioned with high density EVA foam, enhancing comfort when the bag is heavily loaded.