This lightweight Fastpack 20 allows you to move fast in the backcountry with a durable design that checks all the feature boxes. True to our roots, it uniquely fits like a vest with water bottles up front, but distributes weight like a pack. We gave it an upgrade with Infiknit(TM) and FastFlow technology to increase the backpanel&';s breathability and moisture wicking. This do-it-all pack also has plenty of dedicated external storage, a roll-top opening and a full-side external zipper for easy access to anything inside. FEATURES Large front storage for water, phone, maps, glasses, or food Unique zip-down main compartment for total access to gear Roll-top closure expands or compresses to secure varying capacities Large external stretch mesh pockets for quick access Sliding rail sternum straps Height adjustable T-hook harness for weight distribution Easy access pocket with keyfob MonoRip Mesh is very strong, but extremely breathable Water bottles not included SPECS Volume: 1427.95 in3 / 23.4L Height: 18.5" / 47.0 cm Width: 11.0" / 27.9 cm Length: 7.0" / 17.8 cm Weight: 1.3 lbs. / 0.59 kg MATERIALS 100% polyester