100% ANSI Modacrylic mesh material with 2" flame resistant 3M Scotchlite reflective material (1) 360° horizontal stripe (2) vertical stripes, nomex thread, flame resistant binding, hook and loop closure, and (1) lower outside pocket. Withstands 50 home washes and 30 industrial washes. Meets ASTM F1506. Arc Rating: ATPV=5.1cal/cm2. NFPA70E/Hazard Risk Category=1.