Features an inner lining made of our exclusive SO SOFT* fabric, a unique bicomponent material that was rated softest and silkiest among leading masks tested., Features an inner lining made of our exclusive SO SOFT* fabric, a unique bicomponent material that was rated softest and silkiest among leading masks tested., Provide ASTM F2100-11 Level 1 protection, for procedures with risk of low fluid exposure.,Dye-free inner lining, Pleat-style with ties