Thank you for viewing! Inner lining The front side is fabric, and the back side is made of bleached cotton. Three light blue pieces. No changes can be made. Mask elastic is included. The elastic will be threaded and tied before shipping. Please refer to the photos for the size. For washing at home, please hand wash or use a laundry net. Please do not use a dryer, as it will damage the fabric! Shipping will be in an envelope via Yu-packet Post Mini. The price includes shipping. These are handmade items made by an amateur, so there may be uneven stitching or slight imperfections. If you are concerned about this, please refrain from purchasing. If you don't mind, please consider purchasing.