Radians SV25 Economy Class 2 Fire Retardant Safety Vest with Zipper Closure is ANSI 107 Compliant FR protection at an economical price. Excellent choice for extreme work environments like petro-chem, asphalt paving, short-term labor, and welding where a Non-Durable FR* level of protection is sufficient. Non-durable FR protection is achieved by chemically treating a material that is not fire retardant by itself, but becomes self-extinguishing after the treatment. Features: Closure: Zipper.