I like the ones without a shiny surface. They seem less obvious and allow me to wear them with a skirt and black tights and not look too frumpy. I would say that these clogs felt quite tight when I first tried them on. You want them to be snug across the instep but these were actually stiff. I wore them around the house for a day or two and wore thin socks the first two days wearing them to work. I compared them against several other size 37 clogs I have and there is still a notable difference. I would not want them loose so I did not want to size up. I am concerned that Sanita may have some quality control issues.  I bought two pair from another source and returned them both. But these seem to be working out OK.