*Sizing Note* Carhartt are more generously sized you may need to consider dropping down a size from your traditional workwear clothing. If you are in the market for some new overalls then you simply should consider the Carhartt range and what better than the Firm Duck insulated bib overalls. The rugged and durable 100% cotton duck material and triple stitched seams will late the test of time and the loose fit offers extra comfort and movement. These will do the job., Loose fit. 12 oz/yd2 - 407 gsm. 100% Cotton., Firm duck. Inner Lining: Lining: 100% Nylon Interlining: 100% Polyester. Diamond Quilt., Kick panels - Full circumference kick panels. Multi compartment bib pocket with secure zipper closure. Two lower-front pockets., Multiple tool pockets. Right-leg hammer loop. Two reinforced back pockets., Double front reinforced knee pockets with cleanout openings. Button closure on both sides. Adjustable front-elastic suspenders. Ankle to hip side-leg snap closure. Triple stitched main seams.