This is a great bra for larger chests. I am not super athletic, but I do run on the treadmill, among other activities, and finding a bra that keeps my 36Ds in place has been a fruitless challenge, until I found this bra. I was skeptical because it doesn't have an underwire and the construction just didn't seem like it could be effective. Not at all the case, though, as this bra is very good at keeping the girls in place without any chafing, rubbing, or discomfort. And while there is some uniboob, it's not bad...and besides, who cares if the bra is keeping things in place. After all, it is a sports bra, not an evening gown bra! Utility is everything here. Sizing is something of a challenge though. I'm normally a 36D and bought this size in my first Fiona. It fits, but on the third set of hooks. So if it ever stretches out, it will be too large and won't support/compress as well, I would think. So, I decided to get 2 more in a 34D, and while these also fit, they're a tad snug under the arms, which results in a bit of dreaded armpit fat spilling over. It's not terribly bad, though, so I didn't return them. I guess I'm just not sure how to size a sports bra. Overall, I'm very happy with these bras. And, I got them for a steal on Amazon, too, which makes me even happier.