what can you see? The outline or the entire detailed bra?
Because sometimes my shirt shows an outline and it's not meant to be see through.
Shear tops (meant to be see through ) are a different story. I think it’s up to the person. To me. That stuff is to revealing for my taste, but I wouldn't say it's tacky. In some settings it's unacceptable.
I'd say that it's fine. A lot of the shirts that are made for girls are this strange transparent-ish fabric so if you're wearing one of them, there isn't much you can do about it. The only option you really have is to wear another shirt under it and that's not something I want to have to do, especially in the summer. So, for me, having your bra showing under your shirt is acceptable.
I think it can be pulled off without looking tacky. For myself I just wouldn't wear that look all the time though. Its quite daring but if you really wanted to turn up the notch wear a fancy bra and then a sheer blouse. I only like this look if its dressy but not casual.
I wouldn't call it tacky or acceptable. Personally I dislike it, and would never do it. Additionally I would never wear the modern sheer clothes that so many stores currently have to offer. I consider this action on most (but not all) kind of silly looking.
okay most people say its tacky but with the bralet trend starting i think it is becoming slightly more acceptable. i think if its done tastefully and purposely sometimes it could be cute. however when i do it i avoid neon, or patterned bras. and most of the time avoid a plain black bra under a white tee shirt