"I actually made my purchase for this boot in the store due to my 16.5 circumference calf! I tried on so many boots that would not zip over my large calf and finally I tried on this boot in black. They are absolutely stylish, comfortable and go over my entire huge calf which is VERY rare! The price is affordable and I was delighted to get a good looking comfortable boot under $100! I wanted the blue pair but they do not have them at the store but I see them online so I'll try to get as many as these boots as possible because cute wide width calf boots are hard to find! This is the BEST purchase I've made and strongly suggest anyone with a wide calf to get these!!!! Please see my photo of the black Unisa boot I purchased and again, my calves are 16.5 and my size 10 fit perfectly!"