[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.