Nike Free Run iD CUSTOMIZED FLEXIBILITY AND SUPPORT The Nike Free Run iD combines the feel of barefoot running with cushioning, traction and underfoot protection. Customize your shoe's flexibility by adding more support or choosing the lightest, most barefoot-like upper and midsole, and then choose the colors of the Swoosh, laces, sole and more. Choose Your Flexibility For more support, choose the Nike+ ready Free 5. 0 midsole. For the most barefoot-like feel, select the Free 3. 0 midsole: the lightest and most flexible of the Nike Free family. Choose Your Upper For a snug fit and more support, choose the Free 5. 0 upper. It features Dynamic Flywire cables designed to move naturally with the body, tightening during changes of direction to enhance support when you need it. For a lighter feel and enhanced breathability, customize your shoe with the more minimal Free 3. 0 upper. Its engineered mesh offers targeted support while helping keep feet cool. Make It Personal Choose the colors of every part of your shoe, and then add meaningful words and numbers (like your name and a special date) to the tongue tops. The Perfect Fit Exclusively with NIKEiD, you can customize your shoe's width to get the perfect fit and feel.