Made of 90% neoprene, 10% nylon material, 2mm thickness. Its soft construction keeps your hair from sun and the damage of reefs or jellyfish in addition to keeping your head dry and warm. Features: Keep your head and ears from cold air and brisk winds. Made from super stretch neoprene for warmth and durable nylon for comfort. Comfortable srong adhesive fastener tape ensures the chin strap securely in place. Sun visor protects you from the suns harmful rays effectively. Reinforced stitching and strong resilience allows you to enjoy water freely. Wonderful for beach, snorkeling, swimming, scuba diving, surfing, sailing, kayaking, canoeing, etc. Specifications: Material: 90% Neoprene + 10% Nylon Color: Pink / Gray / Black / Sky blue / Dark blue (optional ) Weight: Approx.200 g / 7.1 oz Package List: 1 * Cap