I needed a headband thick enough to hold back my long bangs and cover my forehead some when I run in the winter months. I used this headband this morning when I did some intense Jillian Michaels cardio and the headband didn't budge once. It was nice to not have to fuss mid-workout to adjust my hair. Although I haven't used this running yet, I'm more than sure it will stay in place and I won't have any fly aways.