The Arc'teryx Black Index 15 Backpack is stylish, lightweight, and compact. With 15 liters of storage, this pack features a front zippered pocket with a key clip, an internal stash pocket, lightweight shoulder straps, exterior cord loops for strapping on larger items, and two grab handles. The adjustable shoulder straps provide ultimate comfort. The Index is collapsable and can easily stow away into its own pocket. A great backpack for anyone on the go.