PBI vs PBO – What you need to know

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PBI and PBO fibers are both used in outer shell fabrics of firefighing turnout gear.  Since its introduction in 1999, PBO-blended outer shells have been stagnant at a mere 6% while PBI has become the preferred choice of fire departments looking for increased thermal performance, durability, and comfort.
This bulletin outlines the property differences between PBI and PBO.