Durability and Water Resistance : Our Fendo durable Backpack rain cover is made of heavy-duty silver coating-lined 190T polyester fabric that is waterproof, dustproof, tear resistant and UV-resistant. * Easy To Use : Adjustable Buckle To Adjust The Cover To Fit Your Backpack. It Will Make The Cover Stick To The Backpack To Avoid Falling Off. * Portable and Easy to Use & Pack : Fendo rain cover comes with a reusable waterproof carrying pouch with a study carabiner clip which is easily attach onto your backpack.Convenient to pull out for use and store away when in need.It is ultra lightweight and portable, will not occupy your much space. * Larger for various backpacks : Fendo rain cover is size suitable for backpacks in 26-40L.It is a must-have rainproof pack cover to protect your backpack from the unexpected rains and keep your stuffs inside dry and clean.It is widely used to laptop backpacks,camping backpack,school backpack,hiking backpack etc. Material : 190T Polyester Fabric