[Rain Cover for Backpack]: Don't let a drop of water in. It can resist water of 2000mpa hydraulic pressure rate. Strap around middle of bag is excellent feature to secure in wind, 1 storage bag for easy carrying out [Rain cover for Rucksack]: Dual-layer design, the exterior layer adopts wear-resistant Nylon to avoid scratching and dirt. The inner layer adopts waterproof coating to avoid rain and snow. [Adjustable Buckle to Adjust the Cover to Fit Your Backpack]: It will make the cover stick to the backpack to avoid falling off. [Easy Storage]: It can be easily folded so that you can put it in the side bag of your backpack to save space. [Economical Package]: You can buy 2 pack at reasonable price. Ideal for Outdoor Activities: Perfect for outdoor travel, riding, climbing, hiking and so on. p>The LAMA waterproof backpack rain cover is wear-resistant and waterproof, which can avoid rain, snow, dirt and anti-theft. Foldable design makes it easy to be stored in your backpack. Its perfect for traveling, hiking,and other outdoor activities.Our backpack rain cover meets the demands of rigorous travel on and off the trail, through mountain valleys, summit ascents,campus quads, red rock canyons, and far off airports. Anywhere your next adventure takes you. Features: Specially reinforced, keep your backpack and belongings dry from rain, mud and dust. Seamless construction for weather-tight protection. With PU coating for better water resist (>2000mm). Made of waterproof wear-resisting Nylon material. Adjustable buckle to prevent from falling off. Item Size: XS: 10-17L S: 18-25L M: 26-40L L: 41-55L XL: 56-70L XXL 75-85L. Package Dimension: 8.27 x 7.09 x 0.2 inches