Cushees Thick Ankle Socks, 3-pack 15% spandex Made in USA Cushees Ankle Socks, Triple Thick Like Thorlo at about 1/2 the price. Made in USA! size Medium = Womens shoe sizes 6 - 10 (& labeled as style 167) size Large = Mens shoe sizes 9 - 13 XL = Men's shoe sizes 13 - 17