Constructed of heavy weight washed cotton canvas. Brown leather accents. Large laptop size main compartment. Large back document compartment with 3/4" (inch) zipper opening. Dozens of pouches, compartments and pen holders. Large size plastic covered document sleeve. Storm flap. Cell phone pouch. Adjustable shoulder strap. Top carry handle. Real brown leather on front flap. Antique style brass hardware. Sometimes referred to as the ultimate carry-all for business or travel. Olive Drab M51 engineers field bag. M 51. Dimensions 12" x 14" x 5.75" (inches).