To use this cap, simply adjust the double snapback closure to fit your head comfortably. You can wear it on sunny days for day - drinking or any outdoor activities. When it comes to maintenance, you can spot - clean the cap with a mild detergent and a soft cloth. Avoid machine - washing as it may damage the vinyl design. Store it in a cool, dry place when not in use. Keep in mind that since it's made to order, it takes 7 - 10 business days to process, so plan your purchase accordingly.