The Premium Insulated Duck Bib Overall by Dickies. A true workplace classic with elastic waist inserts and shoulder straps with elastic back, this overall is designed to provide you with a free range of movement. It's made from 10 ounce high performance duck fabric, a 100% cotton work cloth that is strong and durable, yet soft and comfortable. This overall is built to work with triple needled felled seams, reinforced double knees, a hammer loop, heavy-duty brass zippers and zip-to-waist openings. This overall also incorporates durable water repellent technology, making it water resistant. Dickies, Quality Workwear since 1922.