Design: Very flexible leather upper VTS system has been incorporated where extra ventilation is needed, allowing air to enter and exit Highly traction-resistant fabric padding for comfort The tongue adapts to the shape of your foot for a perfect snug-fit, a feature that is ...Design: Very flexible leather upper VTS system has been incorporated where extra ventilation is needed, allowing air to enter and exit Highly traction-resistant fabric padding for comfort The tongue adapts to the shape of your foot for a perfect snug-fit, a feature that is optimized with the PERFECT FIT lacing An extra piece of rubber in the toecap to protect the area and improve the precision and power of the strike In-Shoe Comfort: The midsole is made of resistant, highly durable phylon, providing maximum stability and propulsion Traction & Durability: The outsole is made of high-quality rubber with good abrasion resistance, griping the indoor court perfectly