I am an avid review reader & I want to say first off that everybody saying this bra runs small led me to order a 40DD.  It was too big-wearable on the tightest setting & then with the front flap wrenching all the way up to tighten up the too loose cups--even with that, I managed to still be very happy with this bra!  I will be reordering it in a 38D (my regular size) soon.  In Victoria's Secret brand, I wear a 38D--technically I'm in-between C & D.  I bust out of C's & D's tend to swim a little so I've been unhappy bra person for awhile.  Most times, I will order a band size a size smaller and just use a bra extender if I need to, so the band size doesn't usually worry me & I tend to fluctuate 10-20#'s weight up & down.  I horse back ride and work out with a trainer who uses plyometrics & strength training & flexibility exercises.  My chest always embarrasses me--especially with jumping up and down for plyometrics & wearing thin, light-weight work out shirts!!!  Normally, I wear 2 bras: a normal bra & a compression bra over it.  I buy a different sports bra constantly & donate them when they don't work out.  I'm not saying I didn't have any bounce when I wore this bra, but it was better than any bra I've tried over many, many years & much better than my normal two bra combo.  I love the highest front clip setting & find this bra is not difficult to get on.  If you are in between sizes, I would say just go up a little.  This is my new GO TO workout bra!