I'd been wanting the Frye harness boot for a long time and finally went for it.  I was prepared to order a half size down since I've often heard that they run large.  Before ordering on Amazon, I tried them on at a department store, and the size 8 (my regular size) fit the best.  The 7-1/2 felt too narrow (and I have narrow feet, mind you) and was rubbing my ankle slightly.  I was bummed because my feet are already so huge I was looking forward to getting a smaller size for once.  But I opted for the 8.  Excellent construction and they look really cool.