This is an extremely large backpack/ trauma bag made of Cordura® nylon. The main compartment measures 20”L x 15”W x 7”D, is padded with closed cell foam, and has a #10YKK heavy duty self repairing nylon zipper. This bag has 16 pockets and compartments. On the outside back is a 15” x 8” gusset 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 and a contoured shoulder strap with chest and waist straps. A false back allows for storage of shoulder straps when not needed. 3M™ heat applied silver reflective trim to minimize contamination. This is available in orange, navy, or black (black does not include Star of Life or Reflective material.) The bag weighs 48 oz.