REVOLUTIONARY COMFORT Let's face it: there always a good time to upgrade your sock drawer & experience revolutionary comfort. The top of the foot is a diaphanous web, ultra-thin & extremely breathble. In the middle of the foot, the arch area, there is a high-density band woven in. You won't notice any difference in thickness, but you will fell like the sock is becoming one with your foot rather than sliding around between your foot & your shoe. The sock has flat seam on the toe for comfort & a compression cuff.