I call this an hpa tank bag. It’s really neat, zips up like a body bag, and you can strap it around something like a hydration pack. I used it twice on a rig I threw together. IT COMES WITH a Wolverine HPA line. The line is integrated with the bag, it runs through an eyelet, and to remove the line the fitting has to be disassembled. Stays with the bag and is nice for transport, throw other stuff in the bag, zip it up and roll out. Price includes shipping and all fees!