I'm 5'7.5" with a medium frame (more apple than pear shapped) and wear a size 6 on the bottom most of the time. I wear a 36D bra, though, which usually means a large or soemtimes a medium top. Here's what I remember about sizing as my weight dropped: 145 is when I started fitting into 6's, 155 was 8's, 165 was 10's and 12's.
Pam


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