Rubber sole SHOE SIZE: "B" = Medium width FOOT SUPPORT: Ideal for runners with a medium to high arch looking for neutral support. ENERGIZED FEEL: Delivers a responsive and springy ride to add extra lift to your stride without compromising support or speed. ENERGIZED CUSHIONING: With the most energy return of leading performance running shoes, the DNA AMP midsole technology in Levitate 2 gives you back more of the effort you put in. INTUITIVE FIT, INCOGNITO COMFORT: The inside of the highly adaptable Fit Knit upper holds a host of comfort features to keep you running at your best.