Lighter weight crew sock is constructed with a half-terry foot and a 3x1 leg, making it the ideal merino wool sock for all climates and seasons. 35% merino wool, 35% polypropylene, 22% nylon, 6% elastic,2% lycra. Sizing: Medium: Women's 10-13, Men's 9-12. Large: Women's 10-13, Men's 9-12. --- 2105179