Classic Flame Resistant Short Sleeve T-Shirt Meets ANSI/ISEA 107-2020 Class 2 - Type R 7.75 oz Modacrylic/Poly/Cotton blend 2 Reflective Tape Nomex® thread CAT 2 Protection- ATPV 10 Cal/Cm² ASTM F1506 NFPA 70E Flame Resistant for the life of the garment