No, there's no support, but it will keep you from wiggling and jiggling so much, which is inconsiderate of others in public and rather gross after you reach a certain age or weight, or both. I hate wearing bras and can't understand why anyone would want to sleep in one, as someone suggested. But I love this one. It makes me a bit more modest and works with loose-fitting clothes, around home, and for the gym. To get anything even close, you have to get a sports bra and put up with racerback straps (crossed in back), plus have your breasts flattened, which drive me nuts. This is way better. I'm ordering a second one, because I couldn't find it in stores, so want to grab it in case they discontinue it. It truly is barely there. I like their panties for the same reason.