This Tough Duck lined flame-resistant bib is made for those tough jobs and will let you stay warm without getting burnt. Made of 6-oz. Nomex IIIA flame-resistant fabric, lined with FR cotton quilted to 7-oz. modacrylic. 3M Scotchlite retroreflective material around legs for stand-out visibility at night. Bib has two-way heavy-duty brass Nomex zipper front closure and adjustable Nomex IIIA covered elastic shoulder straps. Two front patch pockets with snap-close flaps, 2 back patch pockets and ruler pocket. Double knee. Elasticized back waist for custom fit. Big sizes: 2XL5XL.