The FR stormhood is ready to work as hard as you do with a 2 layer hood and an extended 1 layer bib to tuck under your jacket or coveralls. We build the FR63 using kermel/lenzing/spandex rib knit fabric for unbeatable softness, comfort, stretch and recovery. This piece is inherently FR, does not melt or drip and provides cat 2 ARC protection. Put it to the test.