The gold standard in light padded running socks for over a decade Experia delivers Thorlo quality, protection, and comfort in a light and thin padded sock Nylon covered LYCRA provides contoured aerodynamic glove like fit Ventilation panels for extra moisture control and breathability Thor-Wick COOL fibers in the ball and heel areas provide enhanced moisture management Specifically sculpted Thorlo padds in ball and heel provide protection from shear and impact