materialThe adjustable night cap uses a double layer satin material that is soft, smooth and durable. It helps reduce frizz and dryness in the hair at night. designThe drawstring can be adjusted to fit your head. It avoids squeezing problems. The wellsealed tape is easy to put on and stays securely on the forehead overnight without leaving marks.Provide protectionBefore bed, you can massage your scalp with a hairbrush and then sleep with the double layer shower cap for maximum protection of your hair.Travel or camp sleeping capAfter treating damaged hair and encouraging growth with a hot brush or hair oil each night, wear this cap to improve results while traveling or camping.Use scenarios At home nightly care: wear the cap every night to help lock in moisture, reduce frizz, and protect hair while you sleep. Oil or treatment nights: apply hair oil or use a treatment, then wear the cap to enhance absorption and effectiveness overnight. Travel or camping: take this cap on trips to provide reliable hair protection in hotels, hostels, or campsites.