Runner's will love the throwback to the early 90's with the Saucony Life on the Run Grid SD running shoe. This shoe exudes cool with its retro silhouette and the Life on The Run limited edition colorway that adds a pop of fashion to your look.Upper: A Wolverine Silkee Suede upper with perforations for ultimate style. Padded tongue and heel collar enhance instep comfort. Flat laces reduce pressure points on the top of the foot. A lace up front offers a customizable fit. Reflective element at heel for enhanced visibility. Midsole: G.R.I.D. (Ground Reaction Inertia Device) Cushioning System provides heel cushioning on impact. Polyurethane midsole offers cushioning, support and durability. Removable RB sockliner with Ionic design.Outsole: Triangular lug design provides excellent traction and durability. XT-600 carbon rubber outsole material offers outstanding abrasion and traction properties.