[chrishoney]

What the others said! My experience with hiding 38a (almost b) breasts is to stay away from male gynecomastia vests--they are uber expensive, very constricting over all, and basically binding for males (think painful.) I prefer microfiber crop tops, lightweight (less support) sports bras and women's shapewear. I also must wear something pretty much no matter what top I wear since my nipples very obviously protrude so much. I have a nice collection of shapewear that does the trick (I can even wear snug tshirts) and was WAY less expensive than gynecomastia vests, especially if you shop online for discounts and sales.

At your height and weight, I also question the ability to hide even a c-cup let alone d's. Knowing the steps I need to take to hide what I have, I'm not even sure I could hide full b-cups without revamping my wardrobe to MUCH looser tops. As it is, I can't wear tanktops or tight shirts without revealing what I have. Good luck with D's, but if you succeed, by all means let us know!

Just my opinion of course.