I like this bra. It is however more of a moderate impact bra. I purchased the medium size for my bra sizing being a 36D. It fits very well (perfect). In fact, it looks very nice and complimentary to my physique as well. However, as I said, it is not the full support that I would want for "running." Now if I wear the bra with an athletic tank top that also has a built in bra feature, I am good to go! But the Vixen bra on its own, it does not support my chest enough from bouncing. Hope this helps!!

By the way, The FIONA Bra does provide ample support for high impact movement!