Slimmer. Sleeker. Snugger. This new, open-road-ready shoe is Altra’s first trim-fitting FootShape™ shoe. The 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. Transform your road-running with the tried-and-true Altra EGO™ midsole, a light and breathable engineered mesh upper, and a Neutral Innerflex™ outsole for flexibility and performance. The Balanced Cushioning™ platform positions your heel and forefoot at an equal distance from the ground, encouraging better alignment and better form. The INNERFLEX™ grid-like grooves in the midsole are designed to provide flexibility and movement. Go with the flow for all your road-running needs with the all-new Rivera.