Touch points at the heel and tongue create a natural feel as you put the shoes on and take them off IN-SHOE COMFORT: Breathable design helps your feet stay comfortable from start to finish Foam midsole delivers a softer ride than the Revolution 5 Plush mesh placed along the collar offers a comfortable feel DURABILITY & TRACTION: Outsole delivers durable traction Computer-generated outsole design creates a natural piston effect as you run, providing more cushioning and flexibility Additional skins throughout enhance durability. very good used condition.