I think those things would fucking suck. Seems like they're made for people looking for a walk in the park, not tough back country use. I bet they lack the rigidity for use in tough terrain and could you imagine puncturing one of those things deep in the back country and needing to wade through deep snow for a considerable distance? Fucking suckage would ensue.
"People say that marijuana smoking is going to get in the way of my career. I say to them that on the contrary, my fighting career is getting in the way of my marijuana smoking." -Nick Diaz