Hey guys, I just ran across this thread, and decided to register for the forum so I could answer any questions about our new sleep system. My name is Mel Terkla from Kifaru, and I am the R&D guy and sales rep for the military division of Kifaru.
This sleep system project started almost 2 years ago, and we tested several types of insulation, including different types of Polarguard, Primaloft, and Climashield. We finally settled on the Climashield insulation for it's warmth to weight ratio, compressability, excellent drape properties, and the fact that the Climashield did not have to be quilted or laminated. Rest assured, the insulation is as durable as any Polarguard or Primaloft insulation.
The listed weights are real, and were weighed at the shop on a very accurate scale. Our synthetic bags are still not quite as light or compressable as a comparable temperature down bag. I talk about that in a thread from our message board, in the military forum, titled "Regulator & Woobie Live!!". Here is an excerpt from the first post:
"As you will see, the pricing is definately high end, but the Regulator system is the most advanced sleeping bag system in existence. We're using the latest, state of the art, US made materials, and manufacturing in the US, making the whole Regulator system Berry Compliant. For comparison, check out the pricing for the sleeping bags from Western Mountaineering and Feathered Friends. These two companies probably produce the finest down sleeping bags available, and they both manufacture totally in the US also. Check the pricing on comparable temperature ranges between their bags and ours. Also, check out the comparable weights. There used to be a large gap on warmth to weight ratio, and compresssability, between down bags and synthetic bags. We have narrowed that gap tremendously with our synthetic bags. Also, our bags have multifuntion features that set them apart from ordinary sleeping bags."
Our temperature ratings are in the comfort zone, and not in the extreme or suvivable zone. The temp ratings are based on the user wearing base layers, using a sleep pad, and in a tipi or tent. As most of you know, temperature ratings can be very subjective, depending on many factors, but we feel our ratings are right in the ballpark.
There was mention of worrying about zipper problems, but I'm not sure what that meant. We're using YKK zips, and have not had any zipper issues.
I hope this helped a bit, and I'd be happy to answer anymore questions. This is a great site by the way.