The Hydrogen Vent Road Socks are your feets' best friend for hot rides. The VaporRize Hydrogen yarns are the lightest-weight yarns we use, resulting in cool, calm, and collected feet. - 7" cuff height (size Medium) - Mesh knit structure in the cuff provides the highest level of breathability for even the hottest rides. - PowerBand mid-foot arch supports the foot and secures the shape and fit where the foot needs it most. - Targeted textured zone under forefoot reduces slip. - VaporRize Hydrogen yarns are extremely lightweight and soft against the skin, placing an emphasis on moisture transfer and minimizing friction. - Vented mesh toe channel helps to keep things light and airy within the shoe.