Dynamic Fit technology provides a snug and adaptive fit at the ankle
Circular knit upper is constructed with spandex for natural movement
Co-molded midsole uses two kinds of foam to add comfort and durability
Dynamic heel fit system uses a wide, stretchy strap and comfort collar
Updated for 2018 with an improved sole, upgraded comfort and designed to allow natural movement, the new Free RN can take you to any distance you heart desires.