[/caption]In my opinion, an AA bra size is perfect because with this size you have the complete freedom when it comes to picking a bra style. Girls with large bra size often find their cup size limiting to a certain point as the bra needs to be underwired, and for very large bra sizes, wide straps are very desirable. However, if you’re blessed with something like an AA bra size, you’ll have no problems wearing all those great strapless or balconnet bras.