Design: Knit mesh upper Updated molded heel collar Standard FootShape™ Fit allows feet to sit naturally and is designed to address biological differences in men’s and women’s feet FootPod™ outsole technology encourages natural movement underfoot In-Shoe Comfort: Balanced Cushioning™ platform positions your heel and forefoot at an equal distance from the ground for better alignment and form Altra® EGO™ Max midsole foam for light and luxurious performance with a little extra bounce and durability Additional Details: Weight: 9.9 oz (280 g) Stack Height: 28 mm