Run stronger in the Flex 2017 RN Running Shoe from Nike.
- One-piece engineered mesh upper in a running shoe style
- Dynamic Flywire cables for a supportive fit
- No-sew overlays for seam-free comfort
- Co-molded midsole with soft injected Phylon core foam
- Molded EVA sockliner enhances comfort
- Tri-star outsole pattern for maximum flexibility