I need dresses for the extremely flat chested.
I did find two today - well one that works and one that will work with a little tailoring. The one for tailoring is a wrap dress that will work nicely for work. The second one... well I was out with my daughter grumbling about chest fittings on dresses and she suggested I look in the youth section. I rolled my eyes but found a dress in the youth section, size xl that really is like a women's small/med but without expecting the person to fill up a bust.
