When you're on walkabout in a damp climate, you'll appreciate Osprey's Ultralight Raincover. The stuff sack lets you pack it tightly until needed. Then, this piece of coated nylon will help you avoid spending a night shivering in a soggy sleeping bag. Fits 75 -110 liter packs.. . 40D Nylon Ripstop. Full wraparound cinch with secure hip belt and harness attachment. Packs into its own carrying case. Fits 75 -110 liter packs. Weighs 0.22 lbs.. Spot clean. Imported.