This product is for those who work in or nearby the live line operation as well as welding staff for protection against burn from electric arc flash. High tech FR materials are used in fabric, it is heat resistant, flame retardant, electro insulating and no melt. It expands rapidly in case of arc welding explosion, and forms a protective layer by thickening the structural density of the workwear through carbonization, thus minimizes the damage from electric arc heat on skin. Style can be customized.