Embark on the ultimate trail to road adventure with the Hoka Challenger 7 Road Running Trainer Its streamlined mesh upper and enhanced foam stack height ensures optimal comfort The exclusive rubber base and redesigned outsole pattern offer superior traction on any terrain inspired by gravel tire design Features include an extended heel pull for easy on and off access Engineered mesh ensures breathability and a secure fit Compression molded EVA foam midsole offers lightweight cushioning and superior shock absorption Durabrasion rubber delivers long lasting durability and reliable traction on various surfaces 4mm lugs enhance grip and stability on rugged terrain Recycled poly laces and upper are eco friendly materials that reduce environmental impact without compromising performance