my size is 8xw and this shoe fits perfectly. The boa constrictor will loosen up a bit from time to time - it's okay, just reach out and pull up. The skin looks really great. I really like these shoes a lot. I ordered an 8 1/2 XW but sent it back as it was lost. My actual shoe size is 8 XW so I ordered them in that size and I'm glad I did - they are perfect even for thick socks! Book them you won't be disappointed.