I’ve heard from several adult women of average height and build that size AA bras are too tight across the front. The underwires are too narrow and close-set to fit an average figure properly.
This problem usually isn’t solved by going up a size in the band or cup, although it’s always worth a try if you’re in love with a particular style.
If you’re over 18 with an average figure, the reason you may have trouble finding a comfortable and proper fit in size AA is because these bras are usually designed to fit either petite women or teen girls.
Either way, the proportions are wrong for most women of average size and shape. It has to do with the shape, length and positioning of the wires.
