Worn twice in excellent condition APL Athletic Propulsion Labs uses cutting-edge technologies to improve your performance in the gym and on the track. , These 'TechLoom Wave' sneakers have mesh uppers that flex comfortably around your feet, Propelium™ midsoles provide excellent cushioning and energy return, Seamless sockliners and strategically placed laces keep them securefabric / inner:fabric&rubber / sole:rubber:Upper: Fabric / Inner: Fabric & Rubber / Sole: Rubber/ textile / inner/textile / rubber / sole/ rubber