Made of rugged nylon construction. Heavy duty non-rusting zippers with pulls. Hydration system adaptable, “D” ring attachments, molded mesh cooling back panel, adjustable shoulder harness, adjustable waist belt, thick webbed drag-carry handle, straps for adding M.O.L.L.E. or Alice clip pouches and side securing straps. Measures 18” x 10” x 10”. Available in O.D. or Coyote. Weighs 3.04 lbs.