Perfect bra for underdressing. I like the strapless varient to be able to remove it quickly if needed. Most strapless ones now have those nice molded foam cups that get you the nice boob shape. But for underdressing, you don't want that. Wacoal has it's expensive Halo bra. But I found a Lilyette bra, Tailored Strapless Minimizer Bra (Style 939) has non-foam cups and stands a chance at underdressing.