To wear this cap, simply adjust the double snapback closure to fit your head comfortably. The adjustable feature means it can fit most people, so you don't have to worry about the size. When it comes to cleaning, it's best to spot - clean the cap with a mild detergent and a soft cloth. Avoid machine - washing or using harsh chemicals as they might damage the vinyl design and the heat transfer. Store the cap in a cool, dry place when not in use to keep it in good shape. And remember, since it's made to order, it will take 7 - 10 business days to arrive, so plan ahead if you need it for a special occasion.