About Kirstin Bull
Kirstin Bull is a passionate ultra-runner who is the current Australian 100km record holder. She was crowned the 100km IAU World Champion in 2016 after running the race of her life amongst an elite field of international runners.
“As an ultra-runner, maintaining adequate hydration is an essential part of my training and race strategy. After using POLAR FIT pre- and post-training over several sessions, I noticed feeling less thirst during exertion and recovering faster afterwards.”
— Kirstin Bull
