Radians SV45-2 Economy Class 2 Self-Extinguishing breakaway vest with 3 Pockets. Garment is made from polyester treated to be self-extinguishing as defined by ASTM D6413 (<2.0s flameout / <6” char length). This garment should never be used where an arc flash or flash fire hazard is present. Typical applications would be Ship Building, Steel Erection, Bridge Building, Fabrication, Asphalt Paving, and other applications involving FR hazards that result from errant sparks rather than open circuit electricity or a potentially explosive atmosphere.