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 Removable and height-adjustable T-hook waistbelt for heavier loads Easy access pocket with keyfob MonoRip Mesh is very strong, but extremely breathable. Daisy chains for securing extra gear Two large side pockets for larger water vessels Water bottles not included SPECS Volume: 1861.22 in3 / 30.5L Height: 17.0" / 43.2 cm Width: 8.5" / 21.6 cm Length: 7.5" / 19.1 cm Weight: 1.3 lbs. / .6 kg MATERIALS 100% polyester