3 layers of 100% COTTON. Pick up Adult & Kid Masks with Filter Pockets for $7.99 (was $18). 3 sizes and 18 styles. Shipping is $3.85 for the first item and $0.25 for each additional item. US only. Seller usually ships within 3 business days. Ships no later than Tue, Jun 2. This one is from Jane and good for a limited time.