Body by Victoria bras are the best IMO. They're pricy (to frugal me) at ~$40 depending on style, but they're sleek, pretty, and do the job. I don't wear a large size so can't comment on how well they work in larger sizes, but I know that they come in "full coverage" versions as well as the demi style I wear (34B). Pretty colors too!

Good luck!
Emily