Mihai says:

I hope it helps: I finally found a simple solution for this annoyance:
en.wikipedia.org/wiki/Jogger%27s_nipple

Here is the Dutch version of the product (blister protection):
www.hansaplast.nl/producten/voetverzorging/likdoorn-en-eelt/54929.html

The regular adhesive bandage (plaster) didn't work for me. 10km into the run, I would almost always lose the tapes. But these things stick much better around the nipple. No shirt rubbing nor sweat can remove them.

Happy (chafing-free) runs!

 BeerBeep says:

I can't say I'm an expert LOL but here some help for all the bloody nipples around the world

www.nipguards.com/index.html

 petergarner says:

In my experience, a very close fitting spandex-type shirt really helps--and looks great! ;-).

 Howie says:

I've found that the looser the shirt and the more movement across the chest the shirt moves, the more raw i become. Agree with petergarner that better fitting shirts help a lot.

 manical says:

Thank you much... my shirts have blood stains from my runs... I know.. TMI