Whatever your "why" is for working out, the Metcon 9 makes it all worth it. We improved on the 8 with a larger Hyperlift plate and added a rubber rope wrap. This version has Nike EasyOn technology—the flexible heel collapses when you step in then snaps back into place—to help make them easy to put on and take off. To top it off, we gave this look metallic accents that are sure to help your gains steal the spotlight.