In view of recent events, I went back to the sewing machine and created a mask design that I loved for my family. I've now handmade over 400 masks and still going. They each have two layers of 100% cotton, and an opening in the back where you can tuck in a filter. Each comes with a small square filter, but you can always use coffee filters for a disposable option. They also have a small wire in the nosepiece to form to your face and help prevent glasses from fogging! These are completely machine washable just put them in a lingerie bag for best results. I hit them with a quick ironing to press them back into shape. I will be adding children's sizes July 1st. Thank you all for purchasing and keeping this small business alive in these trying times.