Nike Men Air Max 90 ShoeBlack Violet Pop Varsity Purple Volt Sneakers Mixture of material on the upper Textured leather mudguard, soft suede accents and cowhide on the vamp. Max Air unit in the heel. Padded collar Stitched overlays and TPU accents Foam insole Rubber Waffle outsole SKU: CZ5588 001 Nothing as fly, nothing as comfortable, nothing as proventhe Nike Air Max 90 stays true to its OG roots with the iconic Waffle outsole, stitched overlays and classic TPU accents.