Waterproof Material The double-layer shower cap is made of high quality PVC. This material has the best waterproof performance. Waterproof shower caps can keep your hair dry in style and enjoy your shower time. Easy to WearThis shower cap uses sophisticated sewing technology. It is soft and elastic while ensuring its stability. The elastic decorative hem is easy to put on and take off. This is a stylish, beautiful and practical shower cap. The Most Suitable SizeThis shower cap is 11 inches, the most suitable size. The recessed inner lining is specially designed for most women and girls. NOTE: 1. The size of the product is measured manually, and there will be an error of 2-3mm due to factors such as different measurement tools and measurement methods. 2. This product is all taken in kind, but due to differences in photography, lighting, color deviation, and personal understanding of color. As a result, there may be some color difference between the actual product and the photo, and the color is subject to the actual product. 3. Please take good care of our products