A.R.C. 1531RF Arc-Resistant Relaxed Fit Pants are the ultimate in protection and comfort. These garments are specially treated and constructed with Nomex thread to protect workers from Arc flash hazards. These green A.R.C. Heavy Duty pants are tested to meet the requirements of the following standards: NFPA 70E-2004 Hazard Risk Category 2 (HRC 2), ASTM F1506-02A, and ASTM F1959M/F1959M-99, the standard test method for determining Arc Thermal Performance Value (ATPV). Sturdy and comfortable A.R.C. Heavy Duty Pants feature 9 oz/yd² 100% cotton sateen fabric, HRC 2 with an NFPA 70E rating of 10.0 cal/cm², two front slack pockets and two rear patch pocket and bar tacked belt loops.