I have state of the art thermal arm warmers from Assos, and I can't stand them. They stay up and keep me warm and are very versatile and lightweight and all that, but the silicon bands on the inside grip onto sensitive skin all the way up near my armpit. I don't think they're too tight for me, I just don't like the feeling and only wear them when space is very short. I'd love a nice bolero, and I think I'd find it easier to peel off when riding than the arm warmers.