This Memoi Dot's Boy's Dress Sock is model MK-128. It's a great style for a fancy occasion. The dots are gray. The sock has a soft feel to it as opposed to a mercerized cotton texture. The length from the heal to the top of the sock in size 6-7 is 6 1/2 inches just to give you an example of how high the sock comes up. This sock is 80% Cotton, 17% Polyester, 3% Spandex.