Handmade face coverings made from soft and comfortable fabric. The thicker black (outside) layer is a polyester blend, and the inner white layer is a cotton/poly blend. Very breathable and easy to wear. These washable and reusable masks are not officially rated for medical use, but are still a great safety precaution for those of us who need to leave our homes during these difficult times, and any time you need a safety barrier between yourself and general environmental contaminants including smog, dust and pollen. Large size fits most. The 3mm elastic band is durable and comfortable, with a latex inner core and fabric outer layer. Made in Mexico of USA and Mexico materials. Care instructions are included with each package: Hand wash in cold water using mild soap. Air dry or tumble dry low for 10 minutes.