OK, we're all so weird with our bare feet I thought it would be OK to post this even though we don't have a TMI forum. I forgot my sports bra today (Enell which I got purely for aesthetic reasons but I have others) and wore my Playtex soft cup street bra for my run instead - 95 degree heat, 4.5 miles (just for context no Bodyglide). I could not believe how much more breathable it wasthan a sports bra. I was cooler and I swear I ran better and faster. I got a nice runner's high and easily switched it into high gear for a tempo run (I made a nice 180 cadence, too). I have worn it before many times for runs, but this was the first time I noticed how much more heat it shed. It clearly made a performance difference. And then I thought - what if I didn't wear one at all? I have big DDD boobs, but they are superlight and running in a crappy bra doesn't hurt at all. I know little gals go braless but I think it would be too weird to see a barefoot DDD running around town. But it's SO tempting. Any alternatives? I just want something superbreathable.