I bought this style bra to wear under PJ's and the bra works great.  I wanted a bra that was extremely comfortable (it's like putting on a stretchy lightweight sock) and surprisingly it does give light support. If you wear a large cup size bra,  it obviously won't offer enough support to wear under day clothes (in public anyways). Highly recommended...it's very hard to find a bra that's so comfortable you could wear it to bed.