I got this delivered thru Prime Now w/my groceries lol! I LOVE IT & here are my main reasons. I have broader shoulders & although I like sports bras, I hate getting them on/off over my head. This fastens in the back like a regular bra. It's super comfortable especially sleeping in if you want the girls more contained. With no underwire I wouldn't say it's got great support. I'm on the bigger breast side, but I don't have sagging probs (yet) so it gives me enough. The elastic band under boobs is soft, but tight enough nothing falls out the sides or underneath. I sweat under there in the summer so without wires & it being straight across it's much easier to put a folded paper towel under & it stays flat.