NIKE Kid's Revolution 2 Running Shoes (PSV) UPPER: Lightweight open mesh throughout the upper enhances breathability and comfort. Strategically placed supportive leather overlays for support. MIDSOLE: Articulated, full-length Phylon midsole provides lightweight, responsive cushioning and a natural feel underfoot. OUTSOLE: Deep flex grooves provide a more efficient, natural range of motion. A shoe that delivers breathable comfort, a smooth transition, and a young look for running and everyday use.