Chums Safety NFPA 70E flame resistant kevlar 6 pounds safety eyewear retainer with single breakaway. Able to resist heat up to a temperature of 450 degree C. Will not ignite, smolder, melt, or drip when exposed to arc flash, direct flame, sparks, or welding spatter. Maintains Integrity and Suppleness up to 450C, LOI - 30 percent. Reconnecting breakaway for safety. Fits most standard frame styles. Black color.