Designed for outstanding performance in the mountains on the road and everywhere in between, the women's Challenger ATR 3 Trail Running Shoes from Hoka One One offer a fast and smooth ride. The unique midsole geometry ensures smooth transitions on uneven terrain, while the supportive fit offers a comfortable running experience mile after mile. The breathable upper with reinforced overlays hugs the foot, while the rubber-tipped lugs on the outsole optimise traction on any terrain.. Material: Textile & Synthetic Upper/Synthetic Sole