I went to Glamorise's website to look up measurement guidelines to help me select the right bra size before ordering. I entered measurements on their website and ordered bra size recommended. When I received the bra, the bra is too tight in the band size. These bras run small and I would recommend ordering a size up in the band size that you normally wear. Also, as soon as I put this bra on the band immediately rolled. I'm hoping a larger band size will correct this problem. Overall, I like the bra but I don't think it will be suitable for high-impact activities.