"Medium light weight mid length crew sock. Wick Dry - A blister reducing health system. 1x1 elastic welt top, 3x1 elastic rib leg. High terry stitch heel cushion with smooth jersey front. Full cushioned sole with smooth jersey upper. Rib terry knit arch panel for support - snug fit. CoolMax fiber throughout for moisture transportation. Cotton for breathability, temperature control and moisture absorbancy. Content:63% CoolMax Polyester, 35% Nylon, 2% Lycra Spandex"