Made for short runs, from your daily 5K to that spontaneous sprint, the Nike Free RN 2018 Men's Running Shoe is as flexible as ever. The innovative sole has an updated design, yet still delivers a comfortable, barefoot-like feel. Easily worn with your everyday outfit, or packed in a tote or backpack for a quick change, these are the most versatile in the Free RN family. So you can be up for anything. The upper material has spandex for a more dynamic, improved fit than before. Still lightweight and soft, the upper is easy to collapse, so you can quickly slide the shoe into your tote or backpack. A wide strap wraps your heel for added support, better structure and a more secure fit. Padding in the heel adds another level of comfort. The soft, lightweight sole mimics your foot's natural movement through its innovative pattern. It expands and contracts with every landing and push-off. This provides a natural feel and a barefoot-like sensation, kind of like an extension of your foot. The upper material has spandex for a more dynamic, improved fit than before Lightweight and soft, the upper is easy to collapse, so you can quickly slide the shoe into your tote or backpack A wide strap wraps your heel for added support, better structure and a more secure fit Padding in the heel adds another level of comfort Soft, lightweight sole mimics your foot's natural movement through its innovative pattern Sole expands and contracts with every landing and push-off to provide a natural feel and a barefoot-like sensation Flywire cables work with the laces for more support as you tighten them Rounded heel is made to roll with the ground as you stride Textured toe and heel foam sole sections for traction.