The Nike Revolution 2 Running Shoe is made with an open-mesh upper and full-length contoured cushioning that helps keep you comfortable at every stride. Lightweight mesh upper for breathability and comfort. Strategically placed overlays for enhanced support. Articulated, full length Phylon midsole for lightweight, responsive cushioning and more natural feel underfoot. Rubber Waffle outsole with lugs for durability and traction. Deep flex grooves for a more efficient, natural range of motion.