Comment: Thank you, thank you, thank you! I can finally jog & mountain bike comfortably. I was a size 10-12 A prior to pregnancy & am currently a size 12 D (give or take...) with plenty of new back fat to go with my new breasts. Size wise I went for a medium. It is very firm fitting so perfect for exercise but probably a bit too firm around the band for comfortable sleeping (the join on the band digs in if I am lying on it). It is also probably a bit on the small side around the arms - but only because it comes up high for extra support & my new back fat! It is certainly the best sports bra I have found - despite the minor points above it is super comfortable & I wanted to buy another after my first day in it.