The brand-new Altra Rivera is a neutral, moderately cushioned daily trainer that incorporates an Ego midsole for great protection and responsiveness in a lightweight package. The upper uses a lightweight, breathable engineered mesh that provides a seamless on-foot experience. This is also the first shoe that uses Altra’s new, more streamlined version of their foot-shaped last. The 26 millimeter stack height makes this an ideal shoe for workout class and a daily trainer. If you haven’t yet experienced Altra, this is a great shoe to try out.