E I Wintertime hike quite a bit while in the white mountains of recent Hampshire and I like this layer! It is really great for ascents over my 300 pounds wool shirt. I hardly ever sweat in it or want more than those two layers. If I do sweat it https://electricshaver85959.blogars.com/31434241/the-smart-trick-of-grounded-sweatshirt-that-nobody-is-discussing