Since 1989, Carhartt has been creating heavy-duty gear for people facing the toughtest tasks. These men's bib overalls help you stay safe and comfortable on the job with flame-resistant cotton duck. They are quilt-lined for extra warmth and they have ankle-to-thigh zips to give you quick ventilation. The durable double-front design is designed with your knee pads in mind. Engineered for high warmth in severely cold conditions.