I wanted to like this, I have a medium size head and ordered the small and it fits very loose to the point it doesn't feel like it is even on and this of course makes the ear covers useless, it is very thin good and bad I suppose.
I've had it before, but lost it. getting it again made my head very happy. covers the top of your ears so if it's not dire out, you won't get frostbite. really nice fit under a helmet (Bern is what I use), keeps me toasty even sitting in the bar backyard having some sustenance.
Nice warm cap. It would be even better if the bill was slightly longer and I would really like some sort of wind-stopper fabric panel for the forehead area but don't let that stop you from getting this. I also appreciate that it comes in different sizes, I've found that many one-size-fits-all caps are too tight for my head and the edge of the bill will wind up pushing uncomfortably right above my eyebrows. And not that it should matter but I've had strangers come up to me and ask me about the cap, I guess it looks good.
I wear this a good part of the year. Not bulky, breathes well, small brim helps keep the rain & sun out of eyes.
Ear flaps can be folded up or down while riding for temperature control.