Sigh…I was hoping for a much fancier name for these things. All I’ve seen is just “arm band” though.

I feel like that’s calling a cummerbund a “waist band” …
But anyway. They look really nice and sophisticated. Very 1930s :3 (which is of course why I love them).
But I’m not a man, so I can’t wear them ): (and look traditional)