Camping Backpack Rain Cover, AYAMAYA 45-65L Waterproof Backpack Elastic Water Cover Rucksack Water-resist Dustproof Cover for Hiking Camping Traveling -Blue Capacity: 45L-65L are available. CAN BE USED ON BIG BACKPACK OR LUGGAGES UP TO 24 INCHES Specially reinforced, keep your backpack and belongings dry from rain, mud and dust. Made of waterproof wear-resisting Nylon material, durable, portable and useful With elastic design, it is able to adjust the size according to different backpacks. Perfect for outdoor travel, riding, climbing, hiking and so on