The APL TechLoom Zipline introduces new construction techniques to further improve performance. Featuring a seamless TechLoom construction the single layer upper provides lightweight breathability throughout, with engineered ribbing along the tongue and collar to provide stretch where it’s needed. The new APL TechLoom Ziplines completely surround the upper, providing both lateral and longitudinal support without compromising flexibility. The hollow cord APL TechLoom Ziplines keep the weight low and shoe balanced to help you perform your best. The sleek upper is fitted atop the maximum cushioning APL FutureFoam™ midsole, with internal Souffle sockliner for long-lasting and responsive cushioning.