montbell: ruler of the down world
This jacket rocks. It is made of 30 denier so on the more durable side for montbell. The down is very lofty and soft. The jacket is fully baffled so very warm.
I wear a medium, I am 5'9", 155 pounds and the jacket layers well over an arc'teryx gamma mx and mountain hardwear alchemy. A large would have been to big.
I also own the Outdoor research megaplume (similar to the Mountain hardwear sub zero Sl), this jacket has maybe half an inch less of loft for alot less weight.
Out of the main brand companies, montbell is ruler-Western mountaineering, Feathered friends are Emperors. Buy montbell down, you will love it.