This is a solid sports bra, one of the better I have found for my full busted figure. I have worn it to high impact aerobics, on the elliptical machine, and strength training. It did very well on all of those

*CONS*
- It does not keep them stationary during jump squats and a couple of other moves that required jumping. While it was not uncomfortable jiggle, it was there. As such, I am not sure how this will hold up for runners.

*PROS*
- It does what it says it does. It is a solid sports bra that holds you comfortably while you work out.
- It does not create a uni-boob. This is a plus if you have nice work out clothes or if you would need to, say, wear it to the grocery store after working out.

Only other thing to note is if you wear a heart rate monitor, make sure you purchase one with enough room on the band to slip it under. There is a very small amount of "give' on these, and my monitor could only read my heart rate after I slid it under the fabric of the bra.