Get hats for women with big heads here where all we do is offer large hats for ladies. The average women's hat is made to fit a head size that is around 22.5 inches. Most hats in stores are "one size fits all" and they never do, at least not for us with larger than average head sizes. Do women's hats never fit due to a larger head size or your super thick hair not allowing for hats to fit? Then get one of these hats for women with big heads. Here you can find some women's hats for large heads. These are the most popular large size hats that women love to wear and have given high reviews. See all big hats.