Wasn't sure of these, but for the price I figured it was a no lose situation.
They come all curled up in their collapsed position, and looking at them I thought for sure there was no way they'd extend far enough to fit my ears. I was pleasantly surprised to find they actually fit well, even though they had to be opened to just about their limit.

They are very comfortable, no pressing on the ears or back of the head in any annoying fashion, even for extended periods of time.  After a short while they don't even feel like they're there anymore.

Hasn't got much past 30 here recently, so no telling how they'll do in a Wisconsin winter, but I think these are going to work out just great.