This is an extremely large backpack/trauma bag made of Cordura nylon. The main compartment measures 20" H x 15" W x 7" D, is padded with closed cell foam, and has a #10 YKK heavy duty self repairing nylon zipper. This bag has 16 pockets and compartments. On the outside back is a 15" x 8"gussett pocket and a 15" x 10" x 3" zippered pocket. The two side pockets and top pocket each measure 15" x 5" x 2 1/2". The inside consists of 4 removable flat pockets, 4 pouch pockets and 2 flap pockets. The main compartment has sewn in Velcro straps for securing contents. This pack has a web carrying handle contoured shoulder strap with chest and waist straps. A false back allows for storage of shoulder straps when not needed. 3MTM Scotchlite Reflective Material "Star of Life". Color: Orange, Navy, or Black (Black does not include Star of Life or Reflective material.) Wt. 48 oz. Contents not included.