A threat to your run: the jogger's nipple - Therian Equipment
Runner's Nipple Chafing: Best Prevention Tips for Runners
What's 'Jogger's Nipple' and How Can You Avoid It?
Jogger's Nipple is painful but easily avoided
NippyTips - Anti-Chafing Nipple Covers. Great for Runners, Cyclists, or Anyone That Suffers from Nipple Chafe - 1.75 inches in Diameter - 10 Pairs per Pack - 2 Colors: Black + Camo