ODOR ABSORBING, WATER RESISTANT THE DRIFTER IS OUR ROLLTOP BACKPACK, ITS ADDED STORAGE MAKES IT IDEAL FOR THOSE LONGER ADVENTURES. Carbon Filter System Rubber-backed nylon Custom protective lining Waterproof zipper Lockable Double clip closure Contoured shoulder straps Secret inner stash pocket Genuine leather accents Metal hardware Dimensions: 20" x 13" x 6" Volume: 23L