2026 Hydrogen Aero Tall SockThe 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. 7" cuff height (size Medium) PowerBand mid foot arch supports the foot and secures the shape and fit where the foot needs it most. Rib knit cuff has aerodynamic stripe pattern, providing a speed advantage