Material: Outer Layer: 100% Polyester Fiber. Inner Layer: PEVA. Size: Diameter is 10.5 inches with an elastic band, extremely stretchy. Elastic Design: The elastic bands are securely sewn. One size fits most, easy to put on and take off. Multifunctional Shower Caps: Use them to keep your hair dry while showering or protect your amazing and expensive hairstyle while sleeping. Perfect for spas, spray tans, home use, hotels, and salons; suitable for showering and hair care. Comfortable to Wear: The shower cap is foldable, lightweight, and convenient to pack in your luggage, backpack, or other places. It's reusable, not disposable, so you can take it wherever you go. Product Descriptions Specifications: Material: Outer Layer: 100% Polyester Fiber. Inner Layer: PEVA. Color: As shown. Features: 1. A shower cap sewn to a soft elastic band, suitable for all hair lengths, easy to put on and take off, and the decorative edge makes it trendy. 2. You can use it to keep your hair dry when showering, washing your face, applying a mask, or to maintain your beautiful and expensive hairstyle while sleeping. 3. The elastic band is properly sewn, not the ugly elastic band you see on cheap caps. Waterproof double layer and stylish design. Note: There are pink and yellow seams on the pink shower cap. Package Includes: 4 x Shower Caps.