I have the H4 arctic shield jacket and it is GREAT. It is lightweight and warm...I hunted with it over just a baselayer, turtleneck and sweater down to around zero and was nice and warm.
I was wondering about their line of bibs for the very reasons.
I use a set of H2 bibs at work, but I can't really wear them until it gets below the teens or I sweat easily. They're without a doubt the best insulated gear I've ever tried.
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Kevin Haendiges
NAHC Life Member
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http://hunting-indiana.com
That is some warm stuff. My only prob with it is noise for bowhunting. The early version I have is a little loud. Was made in 05 or 06 so not sure which model.