We bought this for our son when he was 18 months. He is 3.5, and it still fits him (head on the bigger side). The cinch strap has allowed us to probably get 3 years of wear out of it. And it still looks brand new, and absolutely adorable (blue/red feather pattern--so cute). We've received tons of compliments over the years. It provides great sun coverage, and in light rain, too. I don't know if it's because of the hat, but our son is the best kiddo I know about always wearing his hat without any fuss. About to purchase one for our daughter, and expect many years for her to wear hers.