Bras?

Hey guys, just a question for the bra wearing community in here:

If you wear a bra, which bra(s) do you recommend? I haven't really been able to wear a bra that's comfortable and doesn't stress my body out. Since I got a job in an office, I'd like to look "more professional" in what I wear. Right now I can slide by with oversized clothing due to it being winter, but I'm looking for something comfortable for the spring/summer season. I've tried a couple and I'm having a real hard time locating one that I like.

Thanks in advance!!!