The ERB 28853 FS1 Fire Resistant Winter Hard Hat Liner is a 100% cotton hard hat liner with cotton inner felt liner made from a durable flame resistant material that meets ASTM standards. This fire resistant winter hard hat liner helps to keep you warm under your hard hat during the coldest days of work, providing a great value to you on the job.

• 100% cotton with 100% cotton felt liner inside
• Durable Fire Resistant material meets ASTM F1506.
• ARC rated 9.3 Cal/cm2
• Equipped with adjustable chin strap and helmet straps