I purchased a 9 & 9.5 in CATHAY SPICE/ORION BLUE. I have a wide forefoot (big and little toe bunions). Normal instep height. I normally do wear a size 9 or 9.5. I think if I had a narrower foot, I would wear 8.5/9. I usually go bigger for width. Anyhow I found that my toes hit the end of the shoe in 9, but not in 9.5. Width of the shoe worked for my foot. Arch support was decent, but not amazing. Loved the colors & styling of the shoe. If it hadn't been for the seam on the tongue of the left shoe that was exactly on my big toe bunion making the shoe very uncomfortable, I would have kept the 9.5. Interestingly, the seam on the right shoe was not right on my bunion, so that one was ok. 3 stars because it's a nice shoe, it just didn't work for me.