Each reversible mask is made to order from 100% cotton fabrics with a layer of polyester interfacing between. They have adjustable elastic and invisible nose wires. You can choose 2 fabrics per mask from over 300 I have in stock. Child sizes and filter insert versions available. I also have sports, military, animals, retro, flowers, cowboys, music, food, colleges, kids, Disney and more! If you would like to see a list of my fabrics, please send me a note on the form to the right. I can then send pictures of any fabrics you would like to see. And do not hesitate to contact me if you have any questions! Thanks!