Lift. Run. Move. In the Nike Free Flex, you have the freedom to choose your own workout adventure. Its all-purpose attributes unlock a wealth of training options, thanks to a flexible outsole and lightweight upper.Key FeaturesUpper is made of mesh for lightweight, breathable, supportA full-length foam midsole offers comfort and cushioningRubber outsole comes with built-in cutouts for flexibility. And there are thin slits in the forefoot for added flexibilityMore DetailsElastic band around the heel supplies added supportMesh collar gives you soft comfort around your ankleLace-up closure for a secure fit