The Challenger ATR is now on its fifth generation and as is as popular as ever. While maintaining light weight and speed on the trails, it also provides a smooth ride on the road. Hoka’s signature cushion ensures a comfortable ride across all the Sierra rocks you can throw at it. The 4mm deep lugs are spread widely across the forefoot in this version to improve grip in all conditions. Midfoot overlays and a sturdy heel counter provide ample support to keep your foot stable as you run above 10,000 ft and higher.