These are serious training shoes. There's a 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. 

• Lightweight mesh upper delivers complete breathability.
• Dual-external heel counter hugs for your foot for added stability.
• Leather, mid-foot saddle provides comfortable support.
• Cushioned sockliner molds to your foot, eliminating slippage and providing ideal underfoot comfort.
• Charged Cushioning® midsole absorbs impact and converts it into a responsive burst.
• Full rubber outsole for traction and durability with flex grooves for extra flexibility where you need it.