The Carhartt Men's Flame-Resistant Striped Duck Quilt-Lined Overall meets the performance requirements of NFPA 70E and is UL Classified to NFPA 2112 for all work environments. Its 13 oz. 100% cotton FR duck construction is also CGSB155.20-2000 certified that make these bibs ideal for tough work situations. Ankle-to-thigh brass leg zippers with Nomex FR zipper tape and protective flaps with arc-resistant snap closures, along with Carhartt FR and NFPA 2112/HRC 4 labels sewn on front pocket, allow for easy tool storage. The Striped Duck Overall features high-quality 11.5 oz. quilt lining: FR modacrylic batting quilted to FR twill face cloth to meet the job standards today. Yellow/silver/yellow 2" contrasting trim with 3M Scotchlite Reflective Material is approved safety trim. Imported.