These are serious training shoes. There's leather on the top of your foot to keep you stable, flex grooves on the bottom so you can move, and Charged Cushioning® for max impact absorption. All you need to do is work. Lightweight mesh upper with textured overlay details is super-comfortable & breathable. Provides functional support to improve flexibility & stability during dynamic movements. Deluxe Comfort System sockliner molds to your foot for ultimate step-in comfort. Charged Cushioning® midsole absorbs impact & converts it into a responsive burst. Full rubber outsole with strategically placed flex grooves for multi-surface traction & flexibility. Warning: This product can expose you to chemicals including chromium (hexavalent compounds), which is known in the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Offset: 8mm. Weight: 9.66 oz. Lace type: Standard tie.