1.Silk Bonnet with Premium Quality:keland Women’s Sleep Bonnet Cap is made of high grade quality polyester and satin. Hypoallergenic, lightweight and breathable, and protect your hair and maintain your hairstyles. Soft inner lining protects from the course rubbing while sleep. The sleeping cap will not slip off your head and you will not get any creases or lines on your forehead like with other hair bonnets.