I will be hunting in Wi this year for deer. Temps in the teens morning and eve's, highs in the 20's day time. I am looking to purchase Under Armour, however, even with their layer system it certainly does not seem as if it would provide enough warmth in said temps. I will also be doing some stand hunting each day 3-4 hours. Has anyone used their gear in these temps and what product of theres did you buy, base, mid and outer layers. Thanks