An ideal blend of 40% merino wool, 40% ultra spun polyester, 17% nylon and 3% spandex creates a comfortable sock that offers durability, support and moisture wicking to keep feet dry and free of chaffing. Soft merino wool makes this sock breathable in summer and insulating in winter. Fits Men's shoe size 9-13. Machine wash. Available in black, navy, grey and tan.