- Consists of 93% NOMEX, 5% KEVLAR, 2% P-140 - Higher Levels of Protection at Lighter Weights Than Competitive Fibers - Chemical Structure of the Fiber Itself Is Not Flammable and flame resistance provided by Nomex cannot be washed out or worn away - Flame Resistant Properties are inherent and permanent since it built into the molecular structure of the fibre itself. It does not come from chemical treatment or add-ons like the other FR coverall - Fibers that Do Not Burn in Air , maintains a Barrier Between the Fire and the Wearer. Does Not Burn Melt, Drip or Break Open - Protection Cannot Be Washed or Laundered Out, Even If Mishandled - Durability and value, comfort, styling and appearance - Meet US & EU safety standardNFPA2112, EN531