1.excellent flame retardant effect 2.Flame-resistant Zipper,flame-proof Zipper,Aramid Zipper 3.3#,5#,8# 4.oeko-tex standard Aramid ZipperDescriptions ... :1) Fireproof Zipper with Metal Teeth, it is smooth to run forward and ... standard.6) Color:navy blue, blue, red,sage green, etc.7) 100% Nomex can be used as the accessories of coveralls ...