The backpack is very durable and lightweight, yet compact. One large clear vinyl panel can organize airways, intubation equipment, instruments, etc and can be removed and replaced again by Velcro. The pack also has two windowed removable field packs, two zippered mesh pockets, and two large side pockets. The Pro Response Backpack can accomodate C or D oxygen cylinders, which are held securely in place with Velcro straps. High-density padding is used for back support. The pack includes a carrying handle, tuck away straps and waist belt for stability. Made of 1000 Denier nylon.