Wow. There is something absolutely energetic about running in an all leather shoe. Running in an all-leather primal moc feels far more barefoot than running in Vibram Five Fingers or even a moccasin with a rubber sole. The difference is palpable.
Why? I don't know. Apparently when we walk barefoot, electrons are exchanged between us and the earth, helping us unload whatever we need to and giving us renewed energy. Whatever it is, I can certainly feel that difference when I go barefoot, and this feels similar.
So, what are the drawbacks to an all leather sole? Only one that I've found: slippery when on snow and ice or wet grass/smooth wet rocks. For me, we get a lot of the snow and ice round here, but not much of the others. I'm testing out more options to help with traction with the moccasin and will report back when I learn more.
Another thing that may be a problem for some is if their running technique is heavy/loud rather than light/silent, they will wear through the leather, perhaps more quickly than they are used to. From what I can tell so far, wear seems similar or better than Vibram Five Fingers.
Chuck Perry of Mountain People Footwear is the guy to go to for custom primal running mocs. He already has the all leather, but if you're wanting a rubber sole, we're working on that as an option.
Plus 7 miles