It has you covered
Durable water repellant can get you pretty far, but for downpours and wetter conditions, this Large Ultralight Raincover from Osprey Packs will keep your backpacking, trekking, or hiking pack protected and dry. The Ultralight Raincover features tapered seams for water protection and a draw cord for a flexible fit. After the rain has passed, you can pack this back into itself. Fits 50-75 liter packs.
