Made of high-quality polyester and spandex for instant warmth and a comfortable fit on the face and neck,In addition, it is breathable and elastic.The hairband ski mask can help you better protect your face and neck. The neck has an adjustable and retractable drawstring, which can freely adjust the comfort of the neck; there are two slits at the bottom of the mask, which can perfectly fit the neck and provide comprehensive protection to meet your needs.