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 rubber rope wrap. Sworn by some of the greatest athletes in the world, intended for lifters, cross trainers, go-getters and it’s still the gold standard that delivers day after day. 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.