The Black Stallion TruGuard 200 Flame Resistant High-Vis Cotton T-Shirt (FTL6) is made of comfortable flame resistant treated cotton. This shirt is arc rated and meets ARC 2 with an ATPV of 10 cal/cm2. It is intended to be worn under jackets as a secondary source of protection. Stitched with flame resistant aramid thread. NFPA 70E and ASTM 1506 compliant. Limited wash. Intended for secondary protection under a welding jacket.