Dual-density midsole with large-volume, soft inner Phylon core and a firm Phylon carrier for a soft, but durable ride.Treat your feet right with a combination of cushioning and support that can't be beat. Dynamic webbing through the midfoot for fit and support. Zonal sandwich mesh upper for breathability where you need it most. Pressure-mapped outsole with flex grooves and lugs for the most traction possible. Weight 10.4 oz..