After wearing my masks everyday during a recent road trip, I tweaked my pattern upon return. It is now more of a clamshell shape-- a little taller and longer to cover the chin, and uses the skinny, soft, adjustable elastic for your ears for all day comfort. There is more room around your mouth to breath and speak. As always, I use beautiful batik fabrics or other heavier quilting cotton, a nose wire to fit to your face, and filter pocket. Included in your purchase is a 100% merino wool felt filter.