Can't say enough. I was looking for a one piece solution to keep me warm in late fall and early winter as I'm not a big fan of layers. Shells that seemed to radiate cold, so I continued my search. Can't remember what led me to this UA Reactor jacket but damn I'm glad I found it. Wear this last night over a medium-thick turtleneck here in Portland, Oregon in the sub-30s and stay warm, warm, warm. Insulation technology is amazing these days. The jacket feels like nothing, very thin like it won't…