I wear a D cup so I always look for sports bras that provide maximum support. I run, and do high impact aerobics, and participate in boxing fitness classes.  The bra is good during the lower intensity sections of my classes or runs, but it doesn't give maximum support during the higher intensity sections. I now use this bra when I practice yoga.  It's perfect for that type of exercise. The adjustable straps are a nice feature, but I found that the back of the bra rides up when you "tighten" them up.