Women's Nike Free Focus Flyknit 2 Training Shoe COOLED DOWN COMFORT AND SUPPORT. Women's Nike Free Focus Flyknit 2 Training Shoe lets your foot flex naturally while maintaining a stable, locked-in feeling. Flywire cables provide support while Flyknit construction helps keep your feet cool during your hottest workouts. Flyknit constructed upper provides breathable flexibility. Flywire cables in the forefoot offer dynamic lockdown. Outsole pattern expands and contracts to offer flexibility in every direction. Rounded heel mimics the shape of the foot for a comfortable, locked-in feel. Injected unit sole material in the midsole provides cushioning that is durable enough to double as the outsole, dramatically reducing the overall weight of the shoe.