Shaped to mesh seamlessly with your pack, our Pack Liners protect the gear you carry inside your pack from the weather outside. Specs Volume Dimensions Weight O/S 3722 in3 / 61 l 24h x 13w x 14d in. 0.24 lbs. Fabric Main: 40D Nylon Ripstop Accent: 40D Nylon Ripstop Bottom: Not Applicable Features Roll-top waterproof closure Rectangular shape for efficient packing Waterproof-coated fabric and seams Perfect for 50-70 Liter packs.