I usually take a larger hat size but measured my head round from lower back onto forehead and it was around the Medium size of 58cm so decided to risk it and got for that one. It arrived today and I am pleased to say it fits snugly and securely and is lovely and warm and comfortable and not in danger of being blown off in the wind. Very pleased with it and excellent value!
I did write a review, ,however, if you want another I can tell you that it was too small for me, but it looks great on my wife, who loves it,. After all I did buy it for her, not me --OK---How's that? PS I hope to be getting another for her sister soon, it's her birthday.
This hat has a fleecy top which means it is not waterproof but is warm. I have quite a large head but the size was good enough. There's room enough for a small pony tail to be hidden in it. The fake fur on the rim is lovely and it can be pulled slightly down to cover the ears, which I'm sure will be great in cold weather. A good purchase.
Measured my head over ears and hair as 56cm so ordered 57cm size - it fits but only just -if you measure 57 I would go up a size to be sure. That said it looks great, is very warm and the snug fit does ensure that the cold wind doesn't get to my ears- the main reason I have for wearing a hat! All in all very pleased with it.