FITS products are designed to be the best fitting performance outdoor socks in the industry. Knitting socks in Niota, TN since 1902, Crescent Sock Co. endured the ups and downs that shaped the character of Americas people and her textiles industry. Today the company produces socks under its own FITS name in the oldest operating hosiery mill in the U.S. leveraging technical expertise and long-held knowledge of fit and comfort. The family-owned company remains committed to its vision, its people, and to keeping jobs in the Tennessee Valley. Fits Casual Crew Black Unisex Socks Features include: FITS Full Contact Fit Dynamic Toe Cup - contours to the shape of your toes Heel Lock - super deep heel pocket with ample cross stretch locks the sock on your heel Full Contact Cuff - stays in place due to a tighter ankle and looser calf (proper gradience) Excellent thermal regulations for indoor or outdoor use Cushioning in the heel, toe and arch Super-fine merino wool construction Crew height rises just below the calf Looped toe seam Contents: Wool 65%, Nylon 27%, Polyester 6%, Lycra Spandex 2% Made in the USA! Style # 5003 Small = Men's 3.5-5.5, Women's 5-7 Medium = Men's 6-8, Women's 7.5-9.5 Large = Men's 8.5-10, Women's 10-11.5 X-Large = Men's 10.5-12.5, Women's 12-14 XX-Large = Men's 13-15.5, Women's 14.5-16.5FITS