The Kemp USA Premium Blue Line Oxygen Cylinder Bag is a durable oxygen duffel bag with a side pocket, and it is completely padded inside with closed cell foam. It has two interior straps to secure the tank. This was created to hold and protect a D tank and regulator. It features 8 interior mesh pockets and extended side pocket to hold supplies and accessories. The clamshell design with full zipper gives quick access to the tank. It comes with handheld duffel straps and a removable shoulder strap, both constructed of tough water resistant nylon. If you need to get the tank out in a hurry, the entire inner padded lining is removable.