Sewn with love.BirchC$10.00PriceSizeSelectQuantityAdd to CartPRODUCT INFOMade according to public health and CDC recommendations. There are two layers of 100% cotton and a filter insert for added protection. Designed with a mechanism to conform to various nose bridges for comfort and a better fit. RETURN & REFUNDAll sales are final. SHIPPINGShipping to Canada and US available. SIZE GUIDELarge: Width 7.75" Height 7" Medium: Width 7.25" Height 6.5" Small: Width 6.25" Height 5"