Kristen ,
with due respect to Mr. Clancy , you should also know some of the downsides of heated clothing .

1) When you heat your body artificially it must adjust to the prevailing temperature , and you will sweat (yes , even in winter) .

2) Once the batteries run down you will quickly cool down again , sweat intensifies the cold feeling .

3) Your sweaty clothing will no longer insulate efficiently .

4) Your body temperture will begin to slowly fall .

5) You cannot depend on your memory for battery changes/charging , or bringing spares . Mr. Murphy has a law that precludes this ...

These garments feel great until they no longer work , then you may end up feeling like an icicle . If you are an all day hunter it can make for a miserable day on stand . I tried those battery powered socks once since I especially hate cold feet , notice that I said once ? My feet got so wet that the 1,000 grams of Thinsulate might just as well have been toilet paper . I finally had to break from my stand and leave to warm up .

It would be all too easy to become dependant on such a garment for comfort , forcing you to be more selective about your hunting choices . Would you want to be in the wilds of Colorado on a dream solo elk hunt ten miles from your camp and have your suit fail ? Give it some more thought first , and ask some more of our Canadian members for advice . Nobody would know better than them .