Hang on to your hats and celebrate in style on National Hat Day. Celebrated each year on January 15th, don your favorite fedora, cap, cloche, derby, or sunhat. Dig out your ceremonial best and tell the story behind it. Wear your warmest tuque, stocking cap, beanie, and share the name you give it. There are so many hats, fashions, and names we give them. Certainly, we could wear a hat a day and never get through them all.