Vintage Carhartt Overalls Unlined Duck Bib Double Knee Grunge Brown Sz 34x32 USA. These classic overalls are perfect for construction workers, made of durable 100% cotton material and featuring a double knee design for added protection. The unlined style is great for warmer weather, and the brown colour adds a touch of grunge style to your workwear. These Carhartt overalls are made in the USA and are a size 34x32 with a regular fit. They are perfect for those in the construction industry and are designed to withstand tough work conditions. The timeless Carhartt brand ensures that you are getting a quality product that will last for years to come.