The Hoka Challenger 7 has improved cushioning thanks to a larger layer of CMEVA under foot, which not only provides non-stop comfort, but helps to move you through your transition for a smooth stride. The engineered mesh upper is reimagined with recycled content, for improved breathability as well as a comfortable, locked in fit. An improved lug pattern in the outsole gives you a smoother ride across paved surfaces, without sacrificing traction across the trail. DURABRASION rubber extends longevity while ensuring multi surface grip.