Why are so many dresses designed so that you can't wear a bra?

[Karbea]

Had if you have biggish boobs FF, is there anyway to wear them?

This really gets on my tits nerves. If I can find anything nice in Warehouse/Oasis/New Look that goes over my bosom (36G), I turn to the side and you can see my bra under my armpit at the front iykwim, it's ridiculous.
Or it's got a big hole in the back, or has really loose sides. I've found I'm dressing like my mum to avoid such dilemmas. Quite depressing at 31

It drives me mad too, I'm really anti show my bra ( I have been known to pin my bra to dresses, to ensure it doesn't show). I've been looking at the new season Zara dresses and nearly all have backs that make wearing them impossible! Grr!

Same problem here.
I've never worn a halter neck either :(

It's annoying, isn't it? Those dresses are automatically out for me.