The Stone Glacier CHILKOOT 15 sleeping bag is a top-of-the-line piece of gear for backpacking and camping. It is incredibly lightweight, making it easy to pack and carry on multi-day trips. Despite its lightweight design, it is also incredibly warm and comfortable. I have used this bag on several backpacking hunts in the Alaskan wilderness and have never been cold or uncomfortable. The high-quality materials and craftsmanship are evident in the durability and performance of this bag. It is definitely on the expensive side, but in my opinion, it is worth every penny. The warmth, comfort, and durability make it a great investment for any serious backpacker or camper. However, one downside I have found is that the storage bag that comes with the sleeping bag can tear easily if snagged on brush or sharp objects. This can be a concern for those who will be camping in areas with a lot of rough terrain. Overall, I highly recommend the CHILKOOT 15 to anyone in need of a high-performance, lightweight sleeping bag. Just be aware of the storage bag issue and take precautions to avoid snagging it on brush or sharp objects.