When backpacking, it's important to keep your gear nice and dry--no matter what Mother Nature throws at you. While your pack will shed light rain on it's own, when the weather turns really foul, you need a Rain Cover.The designable rain cover will protect your pack and the gear inside when unexpected weather hits. Also stays on your pack when the wind kicks up using an internal adjustable pull cord that secures the cover to your pack. Fits pack sizes 2,800 to 3,500 cubic inches / 45 to 55L. Material: Nylon. The other side colour is silver. Lightweight and easily stowable waterproof rain cover. Durable, waterproof construction. Keep your backpack and belongings dry from rain.