The FuturePlusX Christmas Light Up Beanie Hat is colorful, comfy and cute. I gave it to my grandson for Christmas he loved it. He is 13 I was surprised he loved it so much. This beanie fits most any size. It's made from a soft lightweight acrylic material. The battery lasts a very long time 70 hours or so. You get 3 blinking speeds, fast, slow and no blink. I love the ball on top. Makes a great gift for anyone man or woman.