This is simply the best raincoat there is. So functional with all the pockets, the adjustable side zips help with mobility, and the pit zips cool you down when you're bundled up but still need some rain protection.
It was my go-to coat when I lived in Scotland, one of the dampest places I have ever lived. I got so many compliments on it, and will be taking care of this coat for the rest of my life because I never want to buy another one.
I am a medium/large, US size 8-12 (because we all know sizing is weird) and I got the large. I can wear a big sweater underneath and still feel quite mobile with the coat on.