I'm a woman with very short hair, a pixie cut. Here's the key: your hair has to be completely dry when you put on the helmet. The longer it has been dry the better. It's almost like your hair wants to be the shape it was 30 minutes after it first dried and will try to default back to that style. I usually just have to use my fingers to mess up my hair after taking the helmet off to get rid of the helmet imprint.