This hat is adorable. My son wanted one that was like his Dads, and this was the closest I could find. The reviews suggested I buy 2-3 sizes bigger. I purchased a size 4, our son is 19 months old but in the higher percentile, the hat is big. If I pull the sides up, as per the shown pic, it covers his ears, forehead and back of the neck. I'm not returning it as it works perfectly this way and will surely fit him next winter.