Glen plaid or Prince of Wales check, is a woolen fabric with a woven twill design of small and large checks. It is usually made of black/grey and white, or with more muted colors, particularly with two dark and two light stripes alternate with four dark and four light stripes which creates a crossing pattern of irregular checks. These socks are the epitome of design and comfort. Crafted from 85% cotton, 14% nylon and 1% spandex. Designed in NYC. Made in Colombia. Fits Men's shoe size 8-12.5.