Back in April, Saucony introduced the Endorphin Collection, a range of running shoes that comprises the Speed and Shift models as well as the the brand’s “fastest shoe ever,” a carbon-plated racing flat called the Endorphin Pro. Now another brand owned by Wolverine Worldwide, Chaco Footwear, is releasing a limited-edition Endorphin version of one of its own models, the Chillos slide, an “ultra-light” item designed to help runners to recover after effort. The selling point of the Endorphin Chillos is the Luvseat arch-support, along with Chaco’s Z/Straps and cinch buckle. Chaco will be manufacturing the Saucony Endorphin Chillos at its factory in Rockford, Michigan, making it available online at from July 15. The entire Saucony Endorphin Collection hit on July 1.