Honestly the most comfortable jacket I own. The epitome of active insulation! It's light, breathable, and has some stretch while at the same one being deceptively warm! It is my go-to cold weather insulating layer. The fit is great and allows for a layer or two underneath - when it's very cold I like to wear a long sleeve base layer and a mid layer fleece beneath this jacket. The hood also has a great fit around the head and mouth without need of a drawcord.