Stop the heat on your feet through added breathability and moisture management with CoolMax® polyester and Wick Dry® technology. It speeds up the evaporation of moisture and dries quickly. Smooth, flat-knit construction provides lightweight comfort. Smooth, flat comfort toe seam. Ultra-Lightweight. Crew sock. Fiber contents: 84% CoolMax® polyester, 9% nylon, 6% polyester, 1% spandex.