FR3W050 Wrangler Men's Riggs Workwear Flame Resistant Relaxed Five Pocket Jean 5 pocket jean with exclusive room2move Fit: Improved fit in the seat, thigh, knee and bottom leg opening. Action gusset for ease of movement. HRC 2. ATPV 23.7 calories/cm2. Meets ASTM F1506, NFPA-70E and OSHA Final Rule 1910.269. 14.5 oz. 100% cotton FR denim. Arc-resistant button waistband closure with concealed inner tack reduces heat conductivity. Nomex Flame Resistant (FR) zipper tape. Triple needle (FR) stitching. Extra deep 13" front (FR) pockets. Reinforced back pockets. Oversized watch pocket. Safety orange outside ID for high visibility.