This 3 pack (1 pair Red/Blue, 1 pair Gray/Blue, 1 pair Gray/Red) of socks from '47 Brand features some of the best sock technologies known.
No Show Sock
96% polyester, 2% spandex, and 2% natural latex rubber and feature moisture wicking yarn to combat smell, mesh vented zones so your feet can stay cool, and selective cushioning for comfort.
Size medium fits men's 5-8.5 & women's 5-9.5
Size large fits men's 9-13 & women's 10-12.