MeshImportedRubber soleSHOE SIZE: ??D?? = Medium width, ??EE?? = Wide widthFOOT SUPPORT: Ideal for runners with a flat to medium arch looking for support.ENERGIZED FEEL: Delivers a responsive and springy ride to add extra lift to your stride without compromising support or speed.RESPONSIVE CUSHIONING: BioMoGo DNA midsole cushioning and rebounding rubber create a springy feel underfoot.LIGHTWEIGHT, SECURE FIT: The lightweight mesh upper gives your toes plenty of breathing room, while a reflective saddle wraps around your midfoot for a secure fit.