You must have a melon head if this hat doesn't fit you. I was almost turned away from buying this hat at first after reading some of the reviews. I'm glad I went ahead and bought it anyways. The hat is snug but not tight at all. There is room to add more space if needed. The hat is very light and can just be thrown in the washer if needed. I bought mine in navy blue but will most likely buy another in a different color. Amazon has a great price for the hat and it sure beats carrying a sweat towel on the treadmill.