Feetures Elite Ultra Light Mini Crew Socks Feel your sock and foot become one when you try on the Feetures Elite Ultra Light Mini Crew socks. With a lean, lightweight construction and advanced technology like Sock-Lock™ support system, these socks fit like a dream. Features a Mini Crew length design. Anatomical right and left foot design enhances fit, delivering max comfort and protection by helping eliminate any blister occurrence. iWick® fibers wick moisture to keep feet dry and odor-free. Y-heel construction provides an optimal fit and prevents the socks from sliding. "L" and "R" designation provides easier identification and matching. Medium: Men's 6-8½ / Women's 7-9½ Large: Men's 9-12 / Women's 10-13*U.S. shoe size equivalent.