Which description best matches the moisture barrier composition?

Which description best matches the moisture barrier composition?

• A. Crosstech Black 2F Nomex moisture barrier with woven pajama substrate
• B. Nylon fabric with polyurethane coating
• C. Cotton denim with polymer coating
• D. Polyester fleece layered

Answer: (A)

Moisture barriers in turnout gear are laminated, breathable layers that block water and many chemicals while letting sweat vapor escape. The description that matches this best is a dedicated moisture-barrier film (Crosstech) bonded to a Nomex substrate, with a woven pajama backing. This setup reflects the real construction used in firefighting PPE: a moisture barrier attached to a heat-resistant fabric backing and finished with a woven lining for comfort and durability. The other options describe simple fabrics with coatings or non-woven materials that don’t provide the same laminated, breathable, chemical-resistant barrier essential for protective gear, so they don’t fit the concept of a true moisture barrier composition.

Moisture barriers in turnout gear are laminated, breathable layers that block water and many chemicals while letting sweat vapor escape. The description that matches this best is a dedicated moisture-barrier film (Crosstech) bonded to a Nomex substrate, with a woven pajama backing. This setup reflects the real construction used in firefighting PPE: a moisture barrier attached to a heat-resistant fabric backing and finished with a woven lining for comfort and durability. The other options describe simple fabrics with coatings or non-woven materials that don’t provide the same laminated, breathable, chemical-resistant barrier essential for protective gear, so they don’t fit the concept of a true moisture barrier composition.