I recently purchased this heavyweight thermal shirt for a weekend getaway in the mountains and I was not disappointed! It kept me warm and cozy the ENTIRE time, even in below-freezing temperatures .The relaxed fit was comfortable and the shirt held up well after multiple washes. The only downside is that it may be too thick to wear under some jackets. Overall this is a great addition to any Men`s Fashion wardrobe for winter adventures. After I put it to the test, it's definitely worth it!