Nomex flame resistant clothing has permanently creased pants that are made of 7.5oz. fabric. They have triple stitched; feld locked outer seams and seat seam. All other seams, including the zipper area, are double stitched. Nomex flame resistant clothing pants feature fully finished waistband with belt loops. They have two front deep inset pockets, and two large rear welt pockets, one with a snap. They also have a solid brass zipper. Permanently flame resistant clothing, Nomex is an anti-static fiber blend with a unique molecular structure. Weighing only 4.5 oz per square yard for lightweight comfort and resistant to air burning, melting, dripping, and breaking open when exposed to intense heat, flash fires, or electric arcs, Nomex flame resistant clothing acts as a protective barrier.