To use this cap, simply adjust the double snapback closure to fit your head comfortably. You can wear it casually at the beach, while surfing, or just hanging out. When it comes to maintenance, you can spot - clean the foam front with a mild detergent and a soft cloth. For the mesh back, you can gently hand - wash it in lukewarm water. Avoid machine - washing as it may damage the vinyl design and the structure of the cap. Also, don't leave it in direct sunlight for too long as it might fade the colors. Remember, since it's made to order, it takes 7 - 10 business days to process, so plan your purchase accordingly.