Men's Nike Free Train Versatility Training Shoe - UNBELIEVABLE CUSHIONING. UNRIVALED POWER. Discover your natural instincts for speed and power with the intuitive design of the Men's Nike Free Train Versatility Training Shoe. The breathable upper lets you move comfortably in any direction while Flywire cables support rigorous cuts, so you can take your training to the extremes. Flywire cables offer stability during movement. Highly breathable warp knit upper has lateral support for hard cuts. Tri-star flex grooves allow your foot to move naturally. No-sew overlays zigzag throughout the upper to provide support and durability without weighing you down. Minimal tongue is made with mesh for breathable comfort. Low-profile, single-density Phylon midsole is tough enough to double as an outsole, dramatically reducing its overall weight. Heel to forefoot drop : 5mm differential.