I never wore the wooly pully, but a lot of guys did just a you said USMCPrice, wore them under their field jackets as layering. I used the field jacket liner and the long sleep shirt, depending on the severity weather. And I concur with you Brad, those extremely useful items are all in my POV during inclement weather travels. To that I added an e-tool and a full roll of a$$ wipe. I never quite got over those c-ration papers. And to add to the mountain uniform, the instructors and cadre at NWTC (Northern Warfare Trainin Center) at Ft. Greely, Alaska, wore surplus canvas leggings on the mountain boots and Korean War vintage pile caps. They scoured army surplus stores for legging and pile caps until everyone had several sets before being allowed to wear them on duty. Now that set the mountain unform off right!