I bought in November 2013, it is made from m50 outer and 10d black inner. Standard length, standard width, snap closure, 1 oz overfill 900 fill down. Very nice, I have used in 20F degree weather. I am selling because there is some tearing around the first button at footbox and I have no experience fixing these things. I have kept it covered with duct tape, which stops the leaking.Looking for $175 obo shipped, worth $270 new.