Think of the Patagonia Large Black Hole Cube as your portable closet for toting extra outerwear, fishing equipment, or climbing shoes. This handy-sized bag is convenient and compact, lending itself to long-distance road trips and airline travel. The internal compartment features zippered mesh partitions for separating important gear and items. Polyester ripstop fabric withstands heavy use on the road and is backed by a TPU laminate and DWR finish to repel moisture. As a convenient bonus, there's an external daisy chain for lashing it to packs and duffels when you're negotiating airport terminals or carrying it to the crag.