• 10 oz Modacrylic Blend Waffle Fleece Knit
• Comfortable, soft and breathable 
• Low Profile Comfort – Flat seam construction, wear alone or comfortably fits under a hard hat or helmet
• Flame Resistant Thread
• Meets ASTM F1506 requirements
• Arc Rated ATPV = 10 cal/cm²
• NFPA 70E/CAT 2