This Thorlos Uniform Crew 3-Pair Pack of socks will remain constant in the hustle and bustle of your everyday life. Crew socks that sit at the calf. Sold as a three-pair pack. THOR-LON throughout the body of the sock wicks away moisture, keeps feet drier and reduces blisters. Midweight padding in the ball and heel cushions and protects against shock, impact and shear forces. Lightweight lace padding with added spandex at instep and arch provides a more comfortable fit and ultimate support. Low profile toe closure lies flat to reduce chafing and has minimal bulk. 83 percent THOR-LON acrylic, 12 percent stretch nylon, 5 percent spandex. Machine wash, tumble dry. Made in the USA. Measurements: Weight: 3 oz Product measurements were taken using size XL (Mens Shoe 13-15). Please note that measurements may vary by size.