Hello! I’m looking to purchase the Biker Boot II, and my normal flat size of 8.5 is sold out. I read that you should size up, but the 9 is sold out too. Then I’ve read a few people say they actually sized down. Any suggestions? A size 8 and 9.5 are available. Not sure if I’d be wearing a thicker sock with them or not, but I’d consider it if I had to get the 9.5. Also, my foot is pretty narrow. Like, built for louboutins narrow. LOL!