Athletic Propulsion Labs was launched in 2010 with such a well-engineered basketball shoe that it was banned by the NBA. They've remained committed to innovation, and the TechLoom Zipline runner is no exception. The midsole is a two-piece unit built for maximum rebound and energy return, with a forward-leaning shank plate inside to help promote forward motion. A seamless TechLoom unit upper is lightweight and breathable, with hollow cord Ziplines on the outside for stability. It all sits atop a two-piece outsole that provides traction in any conditions. Finished with an internal Souffle sockliner for added cushioning.