Product Description: With the included 3 L Hydro reservoir, the Gregory Nano 22 H2O hydration pack is ideal for quick missions to catch the sunset or a weekend at your favorite mountain music fest. Features Designed using the Gregory Lifecycle Analysis tool and using recycled materials to provide a 57% reduction in carbon footprint compared to a conventional nylon pack Included 3 L, quick-drying Hydro reservoir in separated zippered compartment helps you stay hydrated on the move Plenty of pockets stash your must-have items-a top zippered pocket with a key clip, a zippered side stash pocket, and a side mesh water bottle pocket Grooved foam back panel allows air to flow freely, keeping your back cooler Padded shoulder straps have a magnetic sternum buckle and integrated hydration routing Front bungee attachment system Easy-pull top drawcord opening lets you access your stuff quickly and conveniently Reflective attachment loops secure water bottles and other trail accessories (not included) Removable webbing hipbelt helps balance your load Padded tubular webbing haul handle adds carrying comfort Custom ComfortGrip molded zipper pulls