I bought this because i've been having some upper abdominal problems and part of me thinks it has to do with sitting at a desk all day long with poor posture and an underwire bra doesn't help.  So, even though I have a 42D chest that begs for underwire support, I gave this a shot.  I was pleasantly surprised by how supportive it was.  Now, it wasn't "underwire supportive", but it was pretty darn close.  Much better than any other wire-free bras I've tried on in my life.  Nice coverage and the straps stay put.