Thank you for viewing! The opening is made of elastic rubber. Easy to put on and comfortable to wear. The inside is also fluffy, so it's warm and comfortable to wear. - Condition New, unused. In very good condition. - Color Pink - Size Marked 15 - Notes: Regarding condition and images * Please contact us before purchasing if you have any questions. * Please note that the color may appear different in the image than in reality due to amateur photography. Also, please understand that the color may appear different depending on your computer monitor or smartphone's color tone.