PNW9 NOMEX-IIIa 7.5 oz. Women's Flame Resistant work pants. -Interlined waistband w/ button closure. -Darted Front -Topstitched outseams and front pockets. -Permanent crease. -Autoclaved ARC RATING: 6.7 ATPV. Waist sizes 28-42 at reglar price. 44-50 at +20%. 52-up at +35%