Heat-resistant Durable：Medium length wigs for women is made of high-temperature resistant synthetic fibers, heat resistant up to 170°C (330°F). Womens wig cap comes with an adjustable elastic band, suitable for head circumferences from 21 to 22.5 inches. Hair wig comes with a breathable, high-elastic mesh cap for comfort and three clips to prevent slipping. Great for daily wear, cos play, parties, and Halloween Brand New in box* Ships within 1 business day.