Nike Women's Free Rn Distance 2 Running Shoe Synthetic-And-Mesh NATURAL FLEXIBILITY. A tri-star pattern on the outsole expands and contracts to allow your foot to move naturally from heel-strike to toe-off. BREATHABLE COMFORT. Breathable fabric in the forefoot and internal sleeve helps keep your feet cool and comfortable. SUPPORTIVE FIT. Flywire technologystrong, lightweight cables that provide supportbring a secure, locked-in fit through your midfoot. Dynamic Fit technology provides a secure, adaptive fit. Soft, responsive Lunarlon cushioning helps absorb impact.