struggling to find plain white tops that are suitable to go under cardi's - not clingy as my tummy needs to be disguised and not see through as i want to wear with dark jeans. I'd prefer a scoop neck, either to the hip or a bit longer. Didn't think this would be a tricky thing to find but all the tops I've tried are really thin and clingy. I'm 5'8" and a size 12-14. Help!