Got this for husband for Christmas.  Day after Christmas we got a huge snow storm so he was very excited to be able to try this out immediately for plowing.

He loves it.  He said the only drawback is because it's breathable he needs to wear a hat over it so he doesn't lose the heat from his head, but he said actually he doesn't mind that because it's perfect for the face, and he went so far as to say he'd like a full body suit made from the same material to wear under his snow suit for plowing.  He said that this product causes you to actually use your body heat more efficiently without sweating and he doesn't ever want to be without one now.

Now that everything is plowed he is taking this to work and wearing it when he has an outside job.

We only gave it 4 stars instead of 5 because of the fact it's better as an undergarment (he needs the hat), but that does not detract from his fondness of the product.