The M-51 Engineers field bag is the ULTIMATE carry-all for business or travel, large laptop size main compartment, large back document compartment wih 3/4' zipper opening, dozens of pouches, compartments and pen holders, large size plastic covered document sleeve, storm flap,and a cell phone pouch. The m-51 engineers field bag has an adjustable shoulder strap and top carry handle. The m-51 engineers field bag has nickel plated hardware and is constructed of heavyweight 22 oz. cotton canvas. Approximately: 12' x 14' x 5.5'. Buy m-51 engineer's bag today. It is a great carry-all shoulder bag. Color: Brown