I used to wear a 38DD bra and used a Champion sports bra that had clasps and adjustment straps to get full support.  This bra was wonderful when I was larger, but as the pounds started coming off it had issues, such as said clasps and adjustment straps.  They would leave bruises or even cut into my spine when I would do floor exercises.  I also am a diehard fan of underwires and found that most smaller bras without clasps did not have these.  I decided to give this a try because of the molded cups, and I am glad that I did.  This bra does not result in uniboob, but still gives excellent support.  I routinely run on the treadmill up to 7mph, and I have never had any discomfort from verticle motion.  Additionally, you do not need to be Houdini to get in and out of the bra.  I highly recommend it.