This is the 2nd pair of these boots I have purchased. You can't go wrong with Seychelles boots. I usually wear  7.5 M but with the weather changing I was wearing socks that were a little thicker. So I got an 8 and I have comfort, class and style. They zip up the back but the boots are lose enough where I don't need to bother. This color is perfect for Sand is exactly like a sand color clean and light color. If you buy these you will be happy. I would suggest if you wear thinner socks wear your regular size.