Extra Wide Nylon Cotton Dress Sock - KING SIZE 11-16 Extra Wide's 75-80% Cotton,&nbsp;&nbsp;Nylon, and Spandex Diabetic Dress Crew Sock. This sock is specifically made for diabetics with wide or swollen feet or ankles, and other medical reasons. This sock will accommodate E through 5E widths.&nbsp;King size = 11-16.