When fashion and function come together seamlessly. Featuring our Slim FootShapeTM fit, the Rivera 2 offers a snugger fit while also allowing your feet to sit naturally on your road runs. Designed with our Altra EGOTM midsole foam, this road shoe provides a soft yet responsive ride for both the beginner and the expert. Midsole - Altra EGOTM. Outsole - FootPodTM. Cushion - Moderate. Upper - Breathable Engineered Mesh. Stack Height - 26 mm. Weight - 6.9 oz / 197 g.