This Outdoor Retailer Summer Market is Germany’s Grüezil Bag premiere in the US.
What I find compellling about the brand is that the use a combination of down (70%) and wool (30%) as insulation. They cover their down with AlmWolle which protects the down from moisture, even when there is high humidity.
This survival model seen here integrates a bug net and is designed to go down to around 40 deg F.
I’ve been using one of their bags for about five years. I get out infrequently with it, but it really is an awesome piece of kit for PNW or heavy humidity environments as well as bivy sack life. I give it *****