Highhunter,
It is a 850+ down sleeping bag. It has the full length zipper (some of the older models were half zip). It has worked very well. The only complaint I have is zipping the fabric in the zipper when I don't pay attention (I have learned to always have my finger on the back side of the zipper).
I paid $300 after the discount. I got it from basegear.com in Portland, Or.
You can get 20% off at basegear.com for signing up for their free membership.
http://www.basegear.com/marmot-helium-sleeping-bag-down.html
