i wear arctic shield during the winter, and its great stuff. i spend all day in sub zero temps during our deer season up here, in it, and until it gets to -20 i dont even wear the coat. i have the original arctic shield, im about due for a new pair of bibs ive had them for probably 6-7 years. as long as you dont submerge them in water your fine. i wear them ice fishing too.
when i go hunting i dont need to wear any thermal's. i just use a short sleeved shirt, a long sleeved shirt and then a heavy weight carhartt hooded sweatshirt and jeans. the insulation they use in their products is the real deal. i bought a set right in the middle of deer season and everybody though i was crazy for spending $300 ( the guy i bought them from gave me deal since i was the first person to buy them) on them. after two nights of them calling me crazy, i said fine i'll prove it to you, tomorrow in the woods i will strip down and roll in the snow and see what happens. so i did, the rest is history, 4 of them went in that night after hunting and bought their own sets of arctic shields.
i have two gripes about them, and i dont know if these have changed from my model to the current ones, but the material has a tendency to snag and rip when walking though prickly stuff, and the zippers on the legs gave up the ghost two years ago. they needed to use a heavier duty zipper on them than they did.