UNBELIEVABLE CUSHIONING. UNRIVALED POWER. Discover your natural instincts for speed and power with the intuitive design of the Men's Nike Free Trainer v7 Training Shoe. Its lightweight upper lets you move comfortably while Flywire cables support dynamic cuts. Flywire cables offer stability during movement. Dynamic stretch bands at the midfoot secure your foot. Tri-star flex grooves allow your foot to move naturally. Phylon midsole is durable enough to double as an outsole reducing its overall weight.