Tyndale Men's Heavyweight FR Vest FR Cotton Blend Made in USA Outershell:11oz Amtex FR 88% Cotton 12% Nylon Duck; Lining: 12oz Moda-Quilt Rib knit collar; External rear kidney flap Two front patch pockets & two inside pockets; Exterior Tyndale FR, arc rating, and HRC labels Flash fire rated - meets NFPA 2112; Made in USA by Tyndale Arc Rating:43.8 / HRC: 4