Dri-Store 25 litre is a waterproof stuff sack with a roll top closure that also acts as a compression system, squeezing surplus air out of the sack as you roll down. Dri-Store bags can be used inside or outside a rucksack or as a full rucksack liner, they are made from lightweight, waterproof, rip-stop fabric, are PU coated with fully taped seams, & a single click shut buckle. Dri-Store 25 litre measures 23x 47x 23cm & weighs 240g.