TECHNOLOGIES CARBON POWERThe three-dimensional carbon fiber sheet provides mid-sole stability and decreases the torsional strain on the foot's arch. ENERGY MAX 3.0 The new generation of highly elasticity material, with a 22% increase in rebound ability. The shock absorbency increase by 6%, which can dramatically enhance the instant resilience, shock absorption and cushioning effect to shocks. V-DURABLE +The inner surface of the toe is equipped with protective coatings and a wear-resistant layer for upgraded endurance. In a wear level testing, the wear-resistant technology applied to the toe is proved 8 times more wear-resistant than average PU leather BREATHINGA unique breathing mesh layer is used to increase ventilation. It facilitates the heat dissipation. This creates a more comfortable environment for the feet. SIZING GUIDEAll sizes are Men's size. For women, add 1.5 size up: 5US -> 6.5 US