NIKE Womens Free RN Running Trainers 831509 Sneakers Shoes (US 7.5, Laser Orange Black 800) fabric-and-synthetic Imported Auxetic Tri-Star pattern for flexibility and a more natural feel outsole sole Lightweight, breathable knit mesh uppers with thin film overlays Flywire cables are built into the lacing for adjustable, adaptable support Soft textile lining offers a great in-shoe feel Lace-up closure, Lightly padded tongue and collar Removable foam insole.