The coverall for oil and gas industury,nomexIIIA fabric,flame retardant and anti-static,safety clothing,have 4.5oz,6oz ... plus built farmhouse deduction copper closed rubber band. Matching system used flame retardant lines between the two buried. Highly reflective ... sapphire blue, dark blue, Jun Lu, dark green, yellow, smoke gray, white, base on customer demand. coverall for oil and gas company