Hoka Crescendo MD 2Perfect for athletes approaching track competitions and looking for cushioning and comfort from 400 to 3000 meters Single layer, thin and breathable mesh upper that adheres to the foot, keeping it firmly inside the shoe Compression molded EVA foam midsole that optimizes push off and provides excellent cushioning Pebax studded plate sole with 6 hole studs in the forefoot for optimal grip Removable metal nails and key included Thin mesh tongue not