Carhartt’s flame-resistant denim jean meets ASTM, OSHA and NFPA 70E requirements and offers increased thermal protection. The relaxed-fit FR jean is made with 14.75 ounces of INDURA® Ultra Soft® denim for superb abrasion resistance and breathability. The jean features a leg opening to fit over work boots, an arc-resistant high-tension waist snap closure and a brass zipper fly.Carhartt, Dearborn, MI.