This 20 inch bag has 21 pockets- 9 outside pockets,12 inside pockets. Its double layer corners as well as the Nylon material and the padded bottom reinforce the bag and provide durability. This bag offers numerous extras: 1 cell phone holder, 1 ID window, 1 safety glasses holder with hook and loop closure, removable chisel holder with metal snaps and plastic backing and a bottle holder with pull string closure. The super wide steel opening frame is perfect for convenient bulk storage and adds strength to the bag. You can carry using handles with the molded grip or the adjustable non slip padded shoulder strap.