Men's Nike Free RN Flyknit Running Shoe brings you miles of comfort with Flyknit constructed upper in a classic silhouette and a newly designed tri-star outsole pattern that adjusts to your foot's every step, delivering support and flexibility.Strong, lightweight Flyknit upper construction provides a sock-like fit.Low-profile cushioning and rounded heel encourage natural footstrike.Auxetic tri-star outsole pattern expands with your step for flexible cushioning.Flywire cables integrate with the laces for a dynamic midfoot fit.Notch in the collar allows for easy on and off.Asymmetrical lacing follows the natural lines of the foot to help reduce lace pressure.