Our new merino wool hiking sock, The Alaskan - Merino Hiking Crew Socks, now comes in a thigh high version. Twenty four inches of terry-lined, cushy wool goodness. These tall socks are so warm and cozy, you'll never want to take them off! Made in the U.S.A. Small/Medium: US women's shoe size 7-10, men's 5-8Medium/Large: US men's shoe size 9-13, women's 11-15