This jacket is great for all the reasons others have mentioned. It is incredibly breathable and you don't get overheated. Even coming inside from the cold you don't need to shed the layer. I'll also add that unlike many other EB jackets which are made for giants, this one has a slim fit and the sleeves are a reasonable length. I am especially impressed by the warmth an fit of the hood, which is very thin, but kept my head and neck warm at 30 degrees with zero activity.Note that in order to keep the jacket breathable they did trade off some wind resistance. It's still pretty good at blocking the wind, but when there is a strong, straight-on gust of wind, I could feel it.At the sale price this jacket is a steal.Two points of feedback for the product team:- please add a storm flap behind the zipper to help with strong, straight-on winds- add a soft fleece lining where the hood hits the chin.