This waterproof dome swimming cap is made of durable silicone that is helpful in protecting your head while you are swimming.Soft and stretchable design makes it adapt to different head shapes and improve the comfort of wearing. It's ideal for swim clubs, swimming classes, water aerobics, competitive swimming and other pool-related activities and events.Choose from multiple colors and customize with your company name,brand logo or marketing message and offer them to your new and potential customers to boost brand awareness.