Backpacks Features: 100% new and high quality Super Waterproof: Don't let a drop of water in.Waterproof wear-resisting Nylon material can make it. It can resist water of 2000mpa hydraulic pressure rate 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. Elastic fabric around: It will make the cover stick to the backpack to avoid falling off. Compact and Portable: It can be easily folded so that you can put it in the side bag of your backpack for storage. Easy to carry: Ideal for Outdoor Activities: Perfect for outdoor travel, riding, climbing, hiking and so on. Item type: Backpack cover Gender: Unisex Material : Waterproof coating, nylon Capacity: 20L-35L-45L-60L-70L-80L-100L Color : as picture Packing: 1Pc Backpack Cover NOTE 1.Please allow slight deviation for the measurement. 2.Due to the light and screen difference, the item's color may be slightly different from the pictures,thanks for understanding.