Description: 【High Quality Waterproof Material】: The backpack rain cover is made of high quality 210t polyester fabric without stitches, which is wear resistant, tear resistant and waterproof, perfect for any rainy day activities. 【Full Protection】: The elastic edge ensures that the backpack cover stays on the backpack without slipping off, ensuring your backpack is fully covered, protecting your backpack even in winds (choose the right size). 【Multi Purpose Protection】: The outer fabric of the backpack rain cover is tear resistant, protects the backpack from scratches, dirt, sand, water, rain, and fog. 【Protect Items from Rain】: Backpack rain cover is perfect for hiking, camping, traveling, cycling, etc., protect your gear, laptop from rain. 【Lightweight and Portable】: The backpack rain cover is lightweight and can be easily folded with little shrinkage. It does not take up space in the backpack and is easy to carry. Specification: material: polyester Size Chart: S: suitable for 30-40 liters M: suitable for 40-50 liters L: suitable for 55-65 liters XL: suitable for 65-75 liters XXL: suitable for 75-85 liters Package Includes: 1 Waterproof Backpack Rain Cover Note: Please allow slightly errors due to manual measurement and different monitors.