100% waterproof backpack made of Nylon 420D Nylon with double-sided PVC lining that closes with waterproof PVC zipper and 3 upper folds to ensure waterproofness. It becomes a backpack to transport it comfortably, with padded straps and back padded with high density EVA foam to increase comfort when the bag is heavily loaded. The SW38 is fixed to ALL motorcycles thanks to the 4 BELTS INCLUDED.