Retro design meets modern performance Synthetic, mesh and neoprene-like material make up the upper Phylon foam for soft cushioning without the bulk Dynamic Fit inner sleeve for foot-cradling support Flexible rubber sole SIZING: These shoes fit small. We recommend going up half a size for a snug fit, and a full size for a comfortable fit. The Tinker Hatfield-designed Air Huarache hit the scene in 1991, with a neoprene-like sockliner that offered total comfort in a lightweight package. Retooled for today, the Nike Huarache Run PS are a unique sneaker with plenty of performance and head-turning style. Product Code: 704949-609