Tuban Waterproof Backpack Rain Cover,Pack Cover Large Rain Water Resist Bag Rain Cover Travel 40l to 60l for Hiking Camping Traveling (Blue) nylon Made of 300D nylon material,durable and wear-resisting,waterproof index 5000mm,it can keep pour for several hours while hiking even in heavy rain,snow,sand and wind,just every thing stays dry Dimensions:85*50 cm(33.1*19.5 inch) The ultralight backpack rain cover for your full sized from 40L to 60L,internal and external frame backpack from the elements,including sun,rain,dust,trees branches and thick foliage Mildew resistant and is an exceptional material in cold weather, maintaining its insulating properties in the presence of dampness Protect your backpack from rain for hiking,camping,cycling and other weekend outings