RS-X sneakers feature Pumas Running System technology Mesh and textile upper with rubber overlays Classic lace-up closure with padded tongue and collar Chunky midsole for a 90's-inspired look Molded sockliner for added coverage Rubber outsole offers traction and grip The Puma RS-X Hard Drive is imported. The latest RS-X model is here, and it’s geared to power through your every step the Men's Puma RS-X Hard Drive Casual Shoes features the RS-X technology you love and the chunky silhouette you crave.