After a reviewer's suggestion, I purchased two men's sizes, one for myself and the other for my husband. The reviewer suggested that the men's size would fit better. I wished I'd at least tried the women's size because this product is just slightly too big for me, however, once you get the adjustment just right (luckily, there are many different adjustment points throughout the product), it will fit and not be at all uncomfortable. This is a great alternative to traditional ear muffs because it doesn't ever interfere with your hairstyle and you can even still wear a ponytail or a hat. There are cheaper versions out there, but thats what they are, cheaper versions.