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National Safety Apparel ArcGuard Performance Arc Flash Kit, 40 Cal, Size: 5XLarge, Certifications/Compliance: CAT 4, NFPA 70E, CSA Z462, OSHA 1910.269, Closure Type: Zipper, Snap, Buckle, Navy, 35% ePTFE, 25% Polyamide, 20% FR Viscose, 19% Aramid, 1% Carb