Band design: The sleep cap is equipped with two soft, elastic bands. These can be wrapped around the head, adjusted for a snug fit, secure the hair cap on the head, and can be worn all night to prevent tangled hair and protect your hair well. Material: The hair cap is made of satin and stretchy fabric, with a good texture, breathable and skin-friendly, which keeps your hair moisturized. Size: Head circumference 58cm, sleep cap diameter 35cm, height 94cm, enough space for longer, thicker hair and larger heads, suitable for short to medium-length thick curly hair. Function: The sleep cap is very suitable for taking a nap, cleaning your face, skin care, and doing housework. Protect your hair: Wearing a hair cap when you sleep not only prevents frizz and tangles, but also reduces breakage and hair loss. It also keeps curly or wavy hair moisturized and shiny. This makes it easy to style and comb your hair.