Natuworld Pure Color Nylon Backpack Rucksack Rain Cover Waterproof Dustproof Cover for Hiking / Camping / Traveling Outdoor Activities - Fit for 35L/45L/60L/70L/80L Available Capacity: 35L/45L/60L/70L/80L are available Made of waterproof wear-resisting Nylon material Durable, portable and useful Specially reinforced, keep your backpack and belongings dry from rain, mud and dust. Perfect for outdoor travel, riding, climbing, hiking and so on