Like many other active full-figured gals, I've spent at least a decade and a half looking for proper support without "doubling up." I discovered the Moving Comfort Maia bras a few years ago & have several; however, the lack of color selection in the Maia drove me to seek other Moving Comfort options that may work as well.  I read many of the reviews for the Fiona & thought I'd give it a shot.  The Fiona definitely provides the support of the Maia and, since it doesn't have an underwire, it has the added benefit of more much better comfort and moveability.  It also has a slightly lower neckline (cuter when layered under today's exercise tanks).  However, I still opted to return the Fiona - everyone can tell when I'm finding the weather a bit chilly. ;)  It's not as bad if you are still willing to "double up," but I found that I'd have to double up with another sports bra.  A tank with a shelf bra was definitely not enough to cover my chill.