Tough Duck durable unlined bibs are made of tough 12-oz. 100% cotton duck for long life. Cotton fabric is more breathable than synthetic material for improved comfort. Features 3M Scotchlite reflective material with 4in. yellow backing over each shoulder and around waist for visibility. Sturdy bib has exclusive double front legs, elasticized adjustable shoulder straps and YKK Delrin zipper front closure with outside fly and hidden snaps. Outfitted with a chest pocket with pencil slot and cell phone pocket, hammer loops and ruler pocket. Orange is CSA-Z96-09 compliant, Class 2, Level 2; Navy is CSA-Z96-09 compliant, Class 1, Level 2. Colors: Orange and Navy. Big sizes: 2XL3XL.