The Hoka One One Challenger ATR 6 is a versatile running shoe designed for all-terrain capabilities on and off the trail. It feels right on the roads between your home and the trailhead, and a max-cushioned Meta-Rocker midsole keeps the cush once you reach rocky, twiggy terrain. Zonal rubber pods provide solid traction on any terrain, and the mesh upper is made out of recycled yarns.