Head over to Old Navy to get your 5-Pack of Triple-Layer Cloth Face Masks for Adults for only $12.99. There is a limit of 3 packages you can order.
The site says these are on back order until June 7, 2020. But I would still place your order to get them then. Shipping is FREE on orders of $25 or more. These is a $7 flat rate on orders under $25.