The 4L Aux Pox mounts on the back and/or front of the Backcountry 25 Pannier, or on the back of each leg of the Reckless 80L or Reckless 40L (V4.0), using 5 bolts, washers, and tee nuts. It consists of a harness and a removable, welded-seam, roll-top drybag. The harness can also be used without the included drybag, for things like fuel bottles, a hydration reservoir, or a tool roll. At the bottom of the harness is an opening for an MSR dromedary nozzle. There's Hypalon armor along the bottom to the edge to protect against abrasion and reflective panels on the outer face for visibility.
Each individual Backcountry Pannier can fit up to two Aux Pox: one on the front and one on the rear. The Reckless 80L and the Reckless 40L (V4.0) can accommodate one 4L Aux Pox on the rear of each harness leg (two total). Or you can remove the Aux Pox entirely for a more minimalist fit.
[Looking for a different color? Check out our (V2) Aux Pox – 4L HERE!]