PBI Gold was the first PBI outer shell in the market. With more than 30 years’ experience, firefighters around the world continue to put their trust in the great protection of PBI Gold. Brochure Where To Buy WHY CHOOSE PBI GOLD? PBI Gold protects against fire, arc fire and flash fires and is worn by firefighters across the globe. PBI Gold fabrics blend 40% PBI fiber with 60% aramid fiber to create a high strength, durable, comfortable, protective fabric. PBI Gold does not shrink, become brittle or break open under exposure to extreme heat and flame.