Oh my gosh!
I actually just went down the street, and for $15 each, I brought these awesome 14B's. Let my describe them to you.
They came with 2 pairs of straps, one is transparent, the other is the colour of the bra it's self. In the top of the cup, there are all these little slits where you can slide the bra strap into to adjust the straps, as well as the adjustment of the actual strap length. To top that off, the Bra is also able to be worn without straps!
These things are amazing! I couldn't resist. I had to buy both a Black and a White Bra! I love these things, they are so cool!
(Oh and yeah, 3 and a half months into HRT, and I filled my A cup, so I have now gone to a B cup, and have my chicken fillets in there again. How amazing!)