Shaped to mesh seamlessly with your pack, Osprey's Backpack Liners protect the gear you carry inside your pack from the weather outside. Ideal for for 50-70 Litre packs.Features Roll-top waterproof closure Rectangular shape for efficient packing Waterproof-coated fabric and seams Perfect for 50-70 Liter packs. Fabrics40 Denier Nylon Ripstop Dimensions (cm)61 h x 33 w x 35 d Volume61 Litres Weight110 grams Osprey Backpack Pack Liner Medium Size For Packs 50 to 70 Litres