This durable face mask is made from two layers of treated fabric and features elastic ear loops and a center flat seam that ensure a close fit. It's machine-washable and reusable. Sold in packs of 3. • Two layers of fabric • Fabric: 100% polyester • Finish: 95% cotton, 5% spandex • Fabric produced with Silverplus technology • Contains a biocide for hygiene and freshness based on silver chloride • Flat seam in the center of the mask • Elastic ear loops • Washable and reusable • Made in the EU • Sold in packs of 3 • The masks aren't medical equipment • Supplier suggests size M for men and size S for women The Face Masks have been produced using the unique Silverplus technology. It prevents the growth of bacteria which cause unpleasant odors, discoloration, staining, and deterioration. PLEASE NOTE THAT DUE TO INCREASE IN DEMAND HANDLING AND SHIPPING TIMES ARE DELAYED! Size guide S M Center front height (inches) 5 ? 5 Earloop width (inches) 2 ? 2 ? Upper width (inches) 6 8 S M Center front height (cm) 13 14 Earloop width (cm) 6 6 Upper width (cm) 17 21