Socks matter when you spend all day on your feet. These comfortable crew socks wick sweat and feature ribbed channels for superior ventilation. 97/3 polyester/elastane Carhartt Force ® technology wicks sweat, dries fast and fights odors Enhanced heel pocket for a secure fit Ribbed channels to improve ventilation on leg Mesh instep for breathability Heel, arch and toe cushioning Carhartt logo knit into top of sock at toe Large: US men's shoe size 9-11.5; US women's shoe size 10-12.5 X-Large: US men's shoe size 12-14.5