My headband did an amazing job of keeping my "in the process of growing out" hair out of my face while out for a run. However, I wish the headband was just a smidgen bigger. Halfway through my pretty short run, I had to remove it because it was giving me such a bad headache. I don't have a very big head, either; my seven year old son and I can share baseball caps. Too bad, it's super cute, but I probably won't be wearing it much.