Ibex uses the Alpin-wool (synthetic / wool blend), tried it last year, light weight, breathes, wickes, and is super warm.

Alpin-wool - �Attractive Alpin-wool� Plus fabric combines wool and nylon on the exterior and polyester fleece on the interior for excellent warmth and wicking performance - http://www.rei.com/product/771646

The warmest coat I have for hunting is an Orvis gortex waterfowl coat with a fleece removable liner. This one is a wetlands pattern. A couple goose hunts last year we had sub 20 degree with wind, this coat with the Barbour waterproof/windproof lined heavy sweater had me sweating sitting in the blind. Fingers and toes were cold, rest of me was more than warm. This sweater is a lot better than the Filson waterfowl which has no lining.

http://www.orvis.com/store/product....597&cat_id=22615&subcat_id=22654

I forgot the Filson stuff was mostly made off shore. Mine is old stuff, double mac in camo is great except it weighs a ton.