How to use: Simply put on the hat and adjust the interior sizing to fit your head comfortably. Use the chinstrap with cord lock to keep it in place during windy conditions. You can store your sunglasses in the Sunglass - Lock side slots or the interior crown pocket. Note: Avoid sharp objects that may tear the fabric. When cleaning, hand - wash it in mild detergent and let it air dry. Don't use high - heat drying methods as it may damage the hat's shape and fabric. This hat is designed for outdoor use, so enjoy your adventures with it but take proper care to ensure its long - lasting performance.