I was interested in this piece for winter snowshoeing/camping in Wyoming/Montana. Day temps there are usually 20 degrees f although it has been colder (5-10 degrees f) on recent trips. This is the first time I will be doing anything aerobic in these temperatures and am curious if the montane extreme will be a good choice. They recommend no more than a light baselayer with the jacket. For me this would be a icebreaker bodyfit 260 or r1. Any suggestions?
thanks,
john

