On or off the job, the Carhartt Duck Bib Overall is durable, comfortable and constructed to wear all year long. This unlined bib is made from heavy 12 oz. 100% cotton duck; a perfect match with a short sleeve shirt in the summer and thermal long sleeve shirt or jacket during the winter season. Equipped with double knees and cleanout bottoms, this Carhartt Overall can withstand every day wear and tear, plus accommodate for knee pads. Storage is not an issue with a variety of tool and utility pockets, including reinforced back pockets and a hammer loop.