Onitsuka Tiger Men's Colorado Eighty-Five Fashion Sneaker 100% Leather/Synthetic Imported Synthetic sole Rubber Outsole: The agressively lugged rubber outsole is beefed up to explore rugged terrain with its deep flex canals. Premium Materials: The vintage upper has been reformed with premium design materials, such as leather and denim, presenting them with a rugged, sophisticated, and fashion-forward vibe. Mesh Heel Collar: Finishing off this shoe is the elite mesh heel collar, provding not only extreme comfort, but enhanced breathability for great climate control during all-day wear.