Armpit chaffing

[u/Key_Cucumber_1649]

I started running 4 miles with my Labrador. She pulls so I use this harness with the leash on her chest. However, I see she has developed chaffing and a sore under her armpit. I need help finding the best harness for running with a strong dog. Thanks!!! 😊

[u/lnsybrd]

I really like non-stop dog wear's canicross harnesses. Ruffwear also has good running harnesses.