To use this cap, simply adjust the antique brass buckle closure to fit your head size comfortably. You can wear it while watching rugby games, going out for a casual stroll, or just to show your Irish pride. When it comes to care, hand wash it with gentle laundry detergent. After washing, pat it down with a towel to get rid of excess moisture and keep the hat's shape. Then dry it on the counter. To help maintain its shape, you can dry it on top of a container. Remember, this is not an officially licensed IRFU product, so it's meant for fans to celebrate Ireland and rugby in a non - official way.