Magid Safety N1530 A.R.C. Jacket | 9 oz. NFPA 70E Compliant Arc-Resistant Jacket with an Inside Upper Left Patch Pocket & Mandarin Collar - Large, Navy Blue (1 Shirt) Nomex thread to protect from Arc flash hazards Flame resistant 9 oz/sq yards 100 percent cotton twill fabric Inside upper left patch pocket Concealed front and wrist snap closures