An extra large top mount dual purpose bag which may be used as a trauma bag or an oxygen setup. The main compartment measures ?L x ?W x ?H with an additional top pocket measuring ?W x ?H x ?L. Internal dividers provides protection and adds body to the main compartment. When used for oxygen, the polypropylene shell stabilizes the oxygen C cylinder. The Bikers Trunk Bag attaches to the rack with Velcro® straps and side release buckles. Made of 1000 denier Cordura® nylon, the bottom of the bag is nylon reinforced vinyl for easy cleaning, and has self repairing #10 YKK nylon zipper. White 3M™ Scotchlite™ Reflective trim. Wt. 40 oz.