The Flame-Resistant Midweight Canvas Waist Overall is combination between a bib overall and a work pant that will keep you warm and protected from flash fires and electric arcs. Made from 8.5 oz. FR canvas, 88% cotton and 12% high-tenacity nylon, this overall has a flame-resistant twill face-cloth lining quilted to midweight modacrylic insulation for added warmth. For the best fit possible the FR Midweight Canvas Waist Overall sits slightly below the natural waist with a full seat and thigh for more room to move. This waist overall also features ankle-to-thigh leg zippers with Nomex® FR zipper tape and inner and outer leg-zipper flaps with arc-resistant snap closure. A chap-style double-front enhances durability and the double knees are equipped with cleanout openings to accommodate knee pads. Carhartt knows a quality work item allows movement especially when reaching and bending, to prevent ripping and tearing they have equipped this waist overall with reinforced leg-bottom kick panels, back pockets and triple stitched main seams. You will find a Carhartt FR label sewn on the back pocket and HRC 3 label sewn on front waistband. This item is NFPA 70E compliant with ATPV 33.5; flame-resistant fabric by Mount Vernon Mills. Visit the Safety Info section of our G&L Clothing Blog for further details on Flame Resistant clothing.