I avoid underwires because I have saggy and very sensitive skin.  I have been under the impression that a wireless sport bra would be most comfy, but as I get less firm (with age and weight gain)  I find that is not true--the bands need to be so tight to support they hurt, and they roll, as well.  I ordered a dozen varieties of Glamorise and THIS IS THE KEEPER!  Getting more.  Just wish they had in  other solid colors.