Maybe not for women?
I am 5'9, and I wear a 42.5 shoe. That is a man's 9.5 or a womans's 11. The 11/9.5 was slightly short, and a bit wide. I wouldn't risk it as I'd end up with toe trauma. The 43 was OK in the length but the boot was too wide. On the tightest buckle, my foot was still moving in the boot. I had to send them back.