This is a nice way to recognize color in everyday life. L size is a bit tight for my 59 size head. I tried to stretch it a bit. I'm not sure how stretching affects the synthetic fiber, but at least I convinced myself that after stretching I'm not too tight.
The long "elf cap" model of the beanie is not quite my thing. However, you can turn the edge quite neatly, even twice, and after that I really liked it too. Maybe a little tighter, but still good.
The beanie is warm enough, at least if it's not impossible to get cold. It doesn't grind, but it doesn't blow through either.