Made of elastic neoprene, made with a custom inner lining that provides extra grip to avoid slipping off the head, soft surface, and comfortable wearing, which can effectively keep water from entering your ears. The headband can keep out water from ears, rich color and reliable quality, ideal for kids or adults who have a small head. Swimming headbands are designed to hold earplugs in place while engaging in water activities, adds an extra layer of protection to your ears when swimming, which helps to fix the earplugs in the right place, keep water from entering your ears, and make you more comfortable when swimming in water, suitable for swimming, surfing, kayaking and other water activities.