Scott, shoot Cougar Mag a PM about the GWW wolfskin jacket he picked up last year lined with Liteloft... He said it was the cat's meow even after sitting in temps that would have driven him out of his stand previously...

From GWW's site:

3M's THL3 LiteLoft Insulation with Comformax.
If you're looking for warmth this is the combo to get! THL3 LiteLoft is a light weight insulation that is 40% warmer than the popular 200 gram Thinsulate and approx. 20% warmer than Ultra200, which is one of the premium insulations used by some companies. Combine this with the 27 oz. wool that we offer, and you're looking at a garment that is designed for the absolute coldest temperatures nature can throw at you. A minimum of layers is required underneath to stay warm for many hours sitting on stand. NOTE: The wool combined with this lining option is actually too warm for most hunters. Combined with the WolfSkin the Comformax LiteLoft lining gives you a very light in physical weight set of cold weather clothing that will be warmer than any other clothing manufactured on the market with the exception of the wool we offer with the same lining.

Important Feature
On all of our lined garments, the Stealth Fleece lining is not "quilted" to the Comformax or the Comformax LiteLoft. We take the Comformax or the Comformax LiteLoft, cut a piece of Stealth Fleece, and sew the two together along their edges. The result: The insulation maintains it's loft, for maximum effectiveness. This of course takes some additional time but the resulting improvement in quality and performance we think is worth it.