For an extra layer of protection, get the Key Flame Resistant Thermal Underwear Bottom. This smooth base layer will provide added warmth, while wicking away moisture. It is rated HRC level 2 and ARC rated 8.1. For all your FR needs, choose Key!
102 Item Items
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• 8 oz. Rib, 60% Modacrylic / 30% Cotton / 10% Aramid
• HRC Level 2
• ARC Rating 8.1