Fluid-resistant, spunbond outer layer/inner white layer made from extremely soft hypoallergenic cellulose. Meets ASTM standards as a low (primary) fluid-resistant barrier @ 80-mm Hg; PFE 99.75% @ 1 µm; BFE 99.3% @ 3.1 µm; and Delta P-3.4. Will not lint, tear, or shred.