Carhartt Men's Flame Resistant Duck Bib Overall 100% Cotton Imported Machine Wash Heavyweight High back with FR elastic suspenders and FR side-release buckles Chap-style double-front enhances durability Carhartt FR and NFPA 2112/cat 2 labels sewn on front pocket Meets the performance requirements of NFPA 70e and is UL classified to NFPA 2112