Have 4 pairs of Merell clogs in size 10 and they all fit great- The  reviews of this item said that they ran large so I purchased a 9.5- It was way too big and flopped off of my foot - only wore them for a few minutes to check fit, and immediately returned them to Amazon- In the past, the  sizing in the Merell brand was consistent , but this one was way off.<br />I  did not exchange for size because had no idea what would fit,so asked for refund which Amazon promptly processed. I really wanted those clogs and the price was great. I wear these clogs everyday and they give great support and comfort.