Can you tell me what you're doing with them please? I see them mentioned a lot as basic staples but I own only one that I'd wear to sleep in if it was hot.
As they have such thin straps I'd never wear one in public as I'm a busty size 12.
I see layering mentioned but don't understand how that works. Is it invisible layering for a layer of warmth or a visible layer because it shows underneath?
Thank you!