Ok, I ordered these specifically for the wide calves.  I got a size 8.5 and usually I wear an 8.5-9 these were roomy enough but I wil have to wear them with thinner socks which is not a problem (trouser or dress socks not athletic).  My calves are 15.5 inches and these zipped right up with room to spare.  They are really really cute and I am so happy that I found them!