After enduring a couple of full-body pat-downs going through airport security due to setting off the alarm with an underwire bra, I decided to try this as an alternative.

It's reasonably comfortable -- straps say up, it seem to stay put even after loading stuff into the overhead compartment on the plane, etc.  It seems to pinch a bit under the armpit, but it's not terrible.

Best of all, I made it through security with no problems.

I ordered my usual size, it it felt a bit small (cup size), so I may order another and go up a size.

Overall, satisfied -- would recommend.