I have looked and looked for a wide brim hat that fit my head. I don't consider myself to have a "big" head per se, but most hats from regular stores just fit too tightly. Perhaps it's because I have a lot of thick hair, but the largest size of this hat fit wonderfully! It is lightweight, durable, and soft to the touch. The cap portion is lined with some kind of cotton or linen, which is also soft but can make it a little warm if worn for long periods in the heat. I found that my head was a little sweaty after about 2 hours at the park, and I wonder if it weren't lined if it would breathe better. Alas, it is still a wonderful hat and I would recommend it to everyone!