Oregon Mouse

That is precisely why I'm asking about how solid REI's bag ratings are because they are not on the EN 13537 system.

The bag I'm looking at is an REI Sub Kilo: http://www.rei.com/product/780902

Which supposedly is a 20 degree bag.

I'm cross comparing to Campmor's down bags.

NOT interested in a Western Mountianering or Mountain Hardware bag unless I can get it on sale - $400 is a little more than I'm willing to spend for my rate of use at this time.