As a firefighter, you face real-life dangers and challenges every minute you’re on the job. PBI fabrics are the first line of defense on the fire ground. PBI fabrics combine excellent flame and thermal protection with strength and durability.They are lightweight, flexible and fast drying, offering high levels of comfort. PBI outer shells do not shrink or become brittle in a fire and resist chemicals and acids. PBI’s base layer fabrics and hoods are breathable, managing body sweat without compromising comfort and protection.