NEUTRAL: For runners who need flexibility, cushioning & versatility. Breathable, lightweight mesh upper delivers complete comfort. External heel counter provides extra support & locks in the back of your foot. Molded, cushioned ankle & heel collar for added comfort & support. Removable, comfort sockliner for added cushioning, support & seamless comfort. Charged Cushioning uses compressed foam for even greater responsiveness & durability, providing optimal cushioning & energy return. Blown rubber outsole with carbon rubber heel is light-weight but incredibly durable. Offset: 10mm