Caribee's -Phantom Hydration compatible day pack is seemly built, perfect for any type of adventure that combines great looks with functional practicality. The comfortable action back padded harness system with air mesh padded & adjustable shoulder straps also features a sternum strap that helps stabilize the load. This includes an internal organizer panel, features a quick-release stash pocket, plus side mesh utility/bottle pockets & space saving adjustable bungee compression system. This hydration compatible day pack has the H2O outlet at the top of the pack (bladder not included) and is constructed from durable 600 denier polyester with 26 liters or 1,386 cubic Inch of carrying capacity.