ATPV Rating 4.1 cal/sq cm Arc Flash PPE Category 1 Collar Style Lay-Flat Color Black Fabric Weight 4.5 oz Features Autoclaved with Workrite Uniform s Perfectpress(R) Hidden Front Snap Closure and Hook and Loop Pocket Closures Pencil Slot Sewn-in Military Creases Western-Style Yoke Closure Type Snap Gender Men s Flame-Resistant Collared Shirt Material Trade Name 2 Percent Other Fiber 5 Percent Kevlar Aramid 93 Percent Nomex(R) Aramid Maximum Chest Size 42 in Neck Style Collar