The Moving Comfort bras are awesome. I have a few different styles and I like them all, however, the Fiona bra was easiest to put on and take off because of the hooks in the back. I was concerned that it wouldn't be as supportive as the racerback bras that I'm used to, but this one is so comfortable and very supportive for my full bust (38DD). I must admit that I have not done any high impact activities in this bra, however, I have no doubt that it will be supportive regardless of the activity.