The Hydrogen Aero Tall Road Socks use the same VaporRize™ Hydrogen yarns used in out Hydrogen Vent Tall Socks on the foot, but adds a rib knit cuff that gives you an aerodynamic advantage over normal socks. It's like getting free speed for your legs.

• Rib knit cuff has aerodynamic stripe pattern, providing a speed advantage without needing a special fabric to be sewn to the sock. This allows for the ultimate comfort in this high-performance category.
• VaporRize™ Hydrogen yarns are extremely lightweight and soft against the skin, placing an emphasis on moisture transfer and minimizing friction.
• PowerBand mid-foot arch supports the foot and secures the shape and fit where the foot needs it most.
• Vented mesh toe channel helps to keep things light and airy within the shoe.
• Targeted textured zone under forefoot reduces slip.
• 7" cuff height (size Medium)