Technology is not just for machines anymore, now with the Powertech Defier running shoes from Reebok youll have the latest in shoe technology at your fingertips, or toetips to me more precise. This pair of shoes features: Lightweight mesh upper with synthetic overlays offers ventilation without sacrificing support. Lace-up closure for a perfect, personalized fit. Lightly padded collar, tongue and footbed completely wrap your feet in cushy comfort. Eco-Ortholite footbed foam insole retains its shape over time for a consistent fit. Shock absorbing midsole with Visible Cell PowerTech technology provides great cushioning and even better energy return. High abrasion-resistant EverTrack rubber outsole optimizes traction and extends the durability of the shoe. Flex grooves for enhanced flexibility and a smooth, efficient stride.