Minimal in design, the men's Nike Revolution 4 Running Shoe (EU) is made of lightweight, single-layer mesh for breathability and soft foam beneath the foot for revolutionary comfort and responsiveness. Mesh upper for optimal breathability. Soft foam midsole delivers lightweight, responsive cushioning. Rubber outsole offers durable traction. Underlays in the vamp and toe tip offer support and structure. Moulded pods offer multi-surface traction. Pods flatten on impact then spring back at toe-off creating a piston effect that delivers responsive cushioning.Upper - Textile, Lining and Sock - Textile, Sole - Other Materials.