The fan-favorite Altra Escalante 4 returns and is better than ever. With a new engineered knit upper for a soft, sock-like fit, this zero-drop trainer is lightweight and flexible to handle everything from daily walks and fast training runs to everyday errands and workouts. Details: Upper: Altra updated the engineered knit upper for a forgiving fit along with a knit tongue for all-day comfort. The Escalante 4 features Altra’s Original FootShape fit that gives you plenty of room for your toes to move freely. Midsole: The Escalante’s EGO™ midsole foam gives you a responsive and connected ground experience for confident running. The InnerFlex™ midsole is composed of grid-like grooves designed to provide flexibility and movement.Outsole: Less rubber and Altra’s FootPod™ technology reduce weight and improve flexibility to help the shoe move naturally with your foot.