I am an F cup. I have all types of sports bras. The el-cheapo's, and the $80 iron lock-them-up ones...not one works for me. I wear a regular bra under my sports bra to tame them. Why would they recommend you not to run, cat? ETA: Also, I would still strongly suggest heading into a running store. Many of the shoes aren't too much more expensive than the DSW shoes and are suited for your feet exactly.