The Nike Free 4.0 Flyknit is constructed with a seamless Flyknit upper in a series of grayscale tones. The lightweight, flexible design features Flywire cables on the eyelets, complementing the asymmetrical lacing system to help provide a locked-down fit. Flex grooves on the outsole provide an adaptable stride as well as a hit of bright green at the toe.
| SKU | 631053 010 |
| Nickname | Black Fog |
| Colorway | Pr Pltnm/Blk-Mid Fg-Lght Chrcl |
| Main Color | Grey |
| Category | Running |