I run a fair amount, doing 5k's and 10k's plus some recreational running/jogging. Anything over two miles and my nipples can chaffe to the point of bleeding (nipple fissures). I've tried other methods of protection such as putting petroleum jelly or talc/baby powder on them to reduce the friction. Down side to petroleum jelly is that it leaves wet stains on your clothes that over time don't come out in the wash. Talc/baby powder just doesn't provide alot of protection after you've sweated a lot.

I agree with the previous reviewer that the price is just a little high, since you can buy a similiar product in a roll and cut it to size. Personally, I don't want to have to take the time to cut anything. I like the fact these are the perfect size. Just make sure your nipples are clean, dry and you've cut away any hair...and apply. They stayed on perfectly for the the last 10k and 5k I ran! They come off pretty easy in the shower too. They are very low profile...so nobody will see you have them on under your shirt. Just make you measure your nipple and order the correct size. I typically only use them for long lasting events where I run over two miles, cycle over 10 miles or know I'm going to be sweating and on the move for a few hours.

I recommend these for anyone running, cycling or participating in any strenuous events who have had issues with chaffing of the nipples. They do work!