Made from 75% ultra spun polyester, 20% nylon and 5% spandex. Ultra-Dri™ moisture wicking. Cushioned soles for added comfort. Reinforced heel and toe protection. Embedded arch support reduces foot fatigue. Breathable mesh. Comfortable stay-up top provides a secure fit. Crew Fit. Size large, fits men's shoe sizes 10-13. 3 Pair Pack. Made in the USA.