What a great product:-)). I'll be happy to give them a try, cause my back is unfortunately also super flat....:-((...I think when the padded bras were introduced first, they might have faced the same trobles, ref. mass acceptance. I think wearring a padded bra has to have exactly the same issues!!! :-)...thus have never heard somebody to comment when replaced with a normal bra, or did you?
Never say no, as Angie said!!!
Actually, I am now wonderring where the heck were this undies till now???! :-)) But also think, they might have to be differrent sizes and shapes, so much more refined than seen...:-))