Nothing to say about the product's efficiency plan: to keep you warm there is no problem. What made me somewhat disappointed, it is to find something that would make him think of a "pajama top" at a apparel. The image of the product (beautiful presentation in truth) suggests that almost buys a combination of jacket. Besides I thought the zipper starting from the neck down to the bottom of the garment. Also, I was wrong. Well, I'm probably a little too demanding but on this product, I believe that it was possible to do better.