The Revolution 8 road running athletic sneakers feature a breathable mesh upper and a foam midsole that delivers cushioning. The outsole has flex grooves in the forefoot that create a cushioned effect as you run. Touch points at the heel and tongue create a natural feel as you take the shoes on and off. The mesh on upper is more breathable than the Revolution 7. Weight: Approx. 292g/10.3oz (size US 10). Heel-to-toe drop: 10mm.