Description: Professional swimming/diving/boating cap that made of neoprene material, stable and warm Suitable for working or casual swimming, diving, boating Universal for both men and women With good elasticity Durable, practical and lightweight for carry Specification: Material: Neoprene + Nylon Color: Black Size: Suit for 48-58 cm / 18.9-22.83 inch head circumference Package Includes: 1 Piece Swimming Cap Note: Due to the differences between different monitors, the picture may not reflect the actual color. There is 2-3% difference according to manual measurement, please check the size carefully before you buy the item