E I Wintertime hike lots in the white mountains of recent Hampshire and I like this layer! It is really great for ascents over my 300 weight wool shirt. I almost never sweat in it or require more than those 2 levels. If I do sweat it evaporates very quickly. https://mylesdvkzm.blogozz.com/31667456/the-2-minute-rule-for-illinois-sweatshirt