Take on tougher trails with the Hoka One One Men's Challenger ATR Trail Running Shoe's maximum cushioning. The Challenger's midsole is more than two times the size of standard running shoes, offering 50% more cush for all the impacts, heel strikes, and rocky steps you're bound to experience sprinting up and down trails. Hoka One One also added an Active frame underfoot to give you support while still allowing for close to the earth feel and performance. An Early Stage Meta Rocker geometry design adorns the Challenger's bottom with an extremely curved radius for a naturally stable ride over all sorts of terrain. This shoe also features a superlight, sew free SpeedFrame upper construction that bonds breathable mesh to durable synthetic overlays for smooth, ventilated comfort. Rubber pods give the sole stability, while 4mm lugs ensure traction on rough trails.