1.REFLECTIVE STRIP KEEP SAFE AT NIGHT: This backpack protection cover has a large reflective strip attached on it. The increased reflective stripe can effectively reduce the occurrence of traffic accidents and ensure the safety of outdoor activities. 2.Rain cover for rucksack : Dual-layer design, the exterior layer adopts wear-resistant Waterproof polyester to avoid scratching and dirt. The inner layer adopts waterproof coating to avoid rain and snow. 3.MULTI-FUNCTION &WIDELY APPLICATION: Due to the foldable function of this waterproof backpack cover, it can be used as bicycle rain cushion, electric fan cover and equipment that needs to be rainproof in rainy days. Perfectly suitable for hiking, camping, cycling, fishing and other outdoor activities. 4.Easy Storage : It can be easily folded so that you can put it in the side bag of your backpack to save space. 5. Ideal for Outdoor Activities: Perfect for outdoor travel, riding, climbing, hiking and so on.