I am a pretty straight medium and this medium is quite snug on me, which leaves no room for anything bulky underneath. It also means my bust gets weirdly flattened out after I manage to stretch it enough to zip it up.I'm enjoying it, and the diagonal zip design gets comments a lot, but I think I'd be much happier if I'd gone up a size.The pilling that other reviewers comment on is definitely a thing. I won't say it's a big thing for me yet, but I can see it starting to happen.It's cozy and comfoSee full review