RS X Hard Drive "White/Galaxy Blue" sneakers The RS-X Hard Drive sneakers sneaker model from PUMA combines the latest footwear technology with the brand's love for retro-meets-futuristic designs. The pair are placed atop PUMA's latest R-System cushioning for all-day comfort with each stride. Imported Composition Lining: Nylon 100% Outer: Polyester 100% Sole: Rubber 100%