I'm kind of new to this, as you all have seen...
I'm a B now, and I've been relying on a sports bra until just recently where I bought an Athletic Works shirt from Wal-Mart, paid $10 for it. I made sure it was a size smaller then the shirts I normally wear. It's a snug fit, but a comfortable snug fit. When I wear it with the sports bra, my chest is completely flat...
As I said though, I'm new to all of this and I'm still trying to figure out what's good for me.