Universal 15L daypack. The Essential Pack has a zip pocket for small items, while the MOLLE system on the front and sides is used for individual expansion. The backpack is also compatible for a hydration system. Height adjustable chest belt Two compression straps around the perimeter of the pack Hand loop Hydration system compatible Flat front pocket with zipper MOLLE system on front and sides Hook and loop strips Specifications VOLUME: 15 Liters | 915 Cubic Inches WEIGHT: 20oz | 565g DIMENSIONS: 18 x 10 x 5in | 46 x 25 x 12cm MATERIAL CORDURAA(R) 700 den