NIKE Women's Air Max 90 Ultra Plush synthetic-and-fabric Rubber sole Breathable, lightweight leather and mesh upper with supportive overlays. Visible heel Air-Sole unit for the iconic cushioning you know and trust. PU midsole unit doubles as the outsole, dramatically cutting down on weight. Rubber in high-wear areas of the outsole for durable traction where you need it most. 100% Authentic