Odour absorbing, water resistant. The Drifter is our rolltop backpack, its added storage makes it ideal for those longer adventures. Carbon Filter System Rubber-backed canvas 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 Refresh your bag by simply placing in the dryer for a few minutes until warm to release all absorbed odors.