Features - Structured design for easier breathability -Triple layered (double layer cotton fabric with center nonwoven fabric) -Washable & reusable -Bendable nose piece for a great fit -Adjustable elastic ear loops Size Small: 14.6 x 15.2 cm (5.75" x 6") Medium: 15.2 x 15.9 cm (6" x 6.25") Large: 16.5 x 16.5 cm (6.5" x 6.5")