Walls Men&#39;s Big Flame Resistant Industrial Coverall 88% Cotton, 12% Nylon Imported Machine Wash Arc rating atpv-9.6cal/cm2 hr. Level 2 7 Ounze. 88 percentage cotton/12 percentage high tenacity nylon twill Bi-swing action back for ease of movement Sleeve cuffs with adjustable concealed snap closure Garment, fabric and trims are nape 2112 up certified