Wolverine durable duck canvas overalls are lined with quilted polyfi/1 insulation to stand up to the toughest jobs and coldest days. Featuring comfort and durability features such as double knee reinforcements, full side leg zippers and adjustable straps. The Caldwell Insulated Bib Overalls also feature: Adjustable elastic straps, triple needle topstitching. interior cell phone pocket, front utility pockets, double fabric on knees, side leg openings with zipper and storm flap closure. Inseam: Regular 30'', Long 32''. Material: Cotton, Canvas.