Men's NIKE® FREE 4.0 FLYKNIT :: Soar through every run, feeling well-supported yet free to fly in your most natural running style with the new Men's Nike® Free 4.0 Flyknit running shoes. Get a secure, glove-like fit from the Anatomically Rounded Heel and Flywire technology that work in unison to provide you with superior support and comfort. Maximize your natural strides in the revolutionary Hexagonal Flex Grooves that allow for multi-directional flexibility exactly where your foot needs it most. Plus, your dogs will be breathin' easy mile after mile in the Nike® Free 4.0 Flyknit running shoes, staying well-ventilated by the super cooling power of the Knit-In Holes. 7.7 ounces