Use the included insole to help customize your running experience in Skechers GOrun Ride 3 Bolt running shoes. Wear them without the insoles for a more minimal experience or with the insoles for additional protection and support. An incredibly flexible fit features a smoothness that will cover your feet in luxury.Upper: Breathable lightweight woven FitKnit fabric provides a ventilated and flexible fit. FitKnit fabric includes stability panels and breathable mesh panels. Synthetic overlays offer added stability. One-piece mesh provides durability and lighter weight. Flat laces reduce irritation. Comes with an extra set of laces.Midsole: M-Strike technology promotes a midfoot strike. Resalyte™ midsole is a lightweight injection-molded compound with memory retention that helps absorb impact. Outsole: GOimpulse sensors and pillars repositioned on the outsole allow for an even smoother transition and optimized running experience.