I have never spent so much money for a sleeping bag in my life. I am planning to hike the John Muir Trail so every pound makes a difference. I tested the bag out in 20 degree weather and was pleasantly surprised that the bag kept me so warm. It is a tight fit, so I thought I would not like it. However, in the cold I found it surprisingly comfortable. If the weather is warm you can unzip the bag and use it as a quilt.
If you are like me the sticker price is a shock, but you get what you pay for.
This review was written in the old system and had content requirements that are different than reviews written today.