Using this adult silicone swim cap is a breeze. Just stretch it gently over your head, making sure your hair is neatly tucked inside. Before putting it on, it's a good idea to wet your hair a bit to reduce friction. When you're done swimming, rinse the cap with fresh water to get rid of chlorine and other chemicals. Don't leave it in direct sunlight for too long as it might damage the silicone. Also, avoid sharp objects that could puncture the cap. For long - term use, store it in a cool, dry place.