Nike Men Air Max 90 Flyleather 'Ruohan Wang' ShoesMulticolor Sneakers the upper features vibrant colors and quirky characters from the mind of Berlin based artist, Ruohan Wang. Nike FlyLeather contains at least 50% leather fiber for 100% performance Foam midsole Woven tongue labels SKU: CZ3992 900 The Earth Day inspired Nike Air Max 90 FlyLeather, which is a highly durable material that's made with at least 50% leather fiber, stays true to its OG roots with iconic Waffle outsole, stitched overlays