Lowe alpine rucksac liner description waterproof rucksac liner keeps your essential clothing and equipment dry features colour coded size system fully taped sealed seams roll top closure with side release buckles lightweight ripstop nylon cordura fabric d ring hang loop base strap xxl dark blue 30 litres 280x500mm xl purple 20 litres 240x450mm l red 15 litres 220x400mm m blue 10 litres 190x350mm s orange 7 litres 170x300mm xs yellow 4 litres