NEUTRAL: For runners who need a balance of flexibility & cushioning. Lightweight, engineered two-toned mesh upper construction for increased ventilation. Firm external heel counter for additional support that keeps the back of the foot locked-in place. Molded, high rebound EVA sockliner for a comfortable & responsive ride. Charged Cushioning midsole uses compression molded foam for even greater responsiveness & durability, providing optimal cushioning & energy return. Solid rubber outsole covers high impact zones for greater durability with less weight. Anatomically placed flex grooves offer proper flexibility in key areas. 360° reflectivity. Removable insole. Offset: 8mm