Really cute, low-heeled bootie for casual wear, but I found them to be extremely narrow.  I have very skinny ankles and the opening is plenty big.  I have always worn a Medium (B) width.  These were even hard to get on since there's no zipper.  I opened the buckle which gave me a little more room but they were very tight.  The length was okay but there's no way I would have ever been able to wear these with socks.