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. Breathable mesh upper with leather overlays for added durability & versatility Full-length Charged Cushioning® midsole for optimal balance of responsiveness & comfort Full rubber outsole with wrap up on sides for additional durability