Description What makes for a better run than an open mind and an open road? The Rivera is ready for all your road-running needs, from training blocks to that weekly long run and everything in between. The soft responsiveness of an Altra EGO™ midsole pairs with the light and breathable engineered mesh upper, and the Neutral InnerFlex™ is creased to help provide flexibility, so you can be one with the road. Benefits BALANCED CUSHIONING™ Our Balanced Cushioning™ platform positions your heel and forefoot at an equal distance from the ground, encouraging better alignment, better form, and a low impact landing. FOOTSHAPE™ TOE BOX Our signature FootShape™ comfort gives your feet more space to sit naturally and is designed to address biological differences in men's and women's feet. INNERFLEX™ These grid-like grooves in the midsole are designed to provide flexibility and movement. FOOTPOD™ TECHNOLOGY This outsole technology actually maps the bones and tendons of your foot to encourage natural movement underfoot. Features Weight: 6.9 oz / 197 g Midsole: Altra EGO™ Outsole: Neutral Innerflex™ Cushion: Moderate Stack Height: 26 mm Upper: Engineered Mesh