I have Feathered Friends Vireo for sale. I bought the bag a while back but have rarely used it. It looks brand new. Based on Feathered Friends' website, it looks like they don't sell this particular model anymore (with "nano" fabric?). I also will include the stuff sack that came with it.

Length: 62 inches
Fill: 850+ Down
Shell Material: Nano

I think $150 shipped is a good deal for someone looking for an ultralight bag. I'm in Golden, CO if someone would rather pick it up locally. Feel free to ask questions, etc.