Vintage USA-made Carhartt insulated duck bib overalls with quilt lining. Built for extreme winter work, construction, and outdoor labor. Highly sought-after, durable, and union-made with the classic Carhartt brown duck shell. Authentic Carhartt insulated duck bib overalls in size R38×28, featuring the legendary 100% cotton duck shell, warm quilted nylon lining, and heavyweight insulation. These bibs include reinforced stitching, multiple pockets, heavy-duty zippers, adjustable suspenders, and reliable union-made USA craftsmanship. Ideal for winter job sites, construction, farming, industrial work, and cold-weather outdoor use. Measurements provided in photos. Buyers should compare to a similar garment they own for best fit. keywords: carhartt bibs, insulated bib overalls, winter work bibs, duck canvas bibs, quilt lined bibs, carhartt brown bibs, mens workwear, usa made bibs, union made overalls, carhartt 38x28