All in all, this is one of the best sports bras I have tried. I do a lot of different workouts, including running, step aerobics, kickboxing, weight lifting, yoga, fitness walking.... And this bra works for them all.

Pros: Keeps the girls pretty much in place. I was a 38C when I bought mine, and I have since shrunk a bit to a 36C. I just use the innermost set of hooks now, and it's fine. The girls are pretty flattened, but I happen to like that, since I'm really not keen on being the busty girl bouncing around the park.

Cons: As another reviewer mentioned, the plastic hooks that join the shoulder straps do turn sideways, and you have to adjust them. It's a minor annoyance, but it's worth mentioning.

Also, the way the band sits (at least on me--could just be the way I'm built) causes it to roll up a bit as I work out. Also, I think since I've lost a little weight since I bought them, I sometimes have to pause mid-run and tuck the girls back in a bit. If I didn't already have two of these, I'd be tempted to buy a smaller one and see if that solves the problem.

Summary: Good bra for runners and just about any other exercise. I even wear them with regular clothes sometimes--especially with tops that look better on flatter-chested women.