Nike Free RN 2018 Boys' Running Shoe (3.5y-7y) DYNAMIC STRETCH TO FREE YOUR STRIDE. Nike Free RN 2018 Boys' Running Shoe (3.5y-7y) has been updated to deliver an even more adaptive fit than before. An ultra-breathable knit upper feels lightweight, while the tri-star outsole pattern adjusts to your every step for a ride that delivers support and flexibility just where you need it.
Circular-knit upper is lightweight and breathable. Soft sockliner for all-day comfort. Auxetic tri-star outsole pattern expands with your step for flexible cushioning. Dual-density foam midsole balances cushioning and responsiveness. Anatomical heel is rounded to roll with the ground. Grade school size range: 3.5y-7y