My older Mountain Hardwear synthetic -20 F. bag is just too heavy and bulky for a gentleman of my "advanced age" so I want a good down winter bag, say around 0 F. to – 15 F. I can always add my duck down mummy shaped "topper" to the bag and/or wear insul;aged clothes inside if the temps will be way sub-zero.
My summer bag is an overfilled Western Mountaineering Megalite and I like it. Unfortunately WM and FF have not seen fit to go with DWR treated down so they are not in the running for my winter bag choices.
Winter camping really means more condensation, both inside the bag's shell and inside the tent. That's why I want down with a good
DWR treatment.
I like Dri Down and even better, Down Tek. But I'd also like to buy the bag from REI if possible for the 10% dividend or the 20% OFF sale.
It seems Marmot (sold by REI) has their own proprietary treatment "on the molecular level" as they advertise. Has anyone used Marmot DWR treated down bags? How do they preform??
Other suggestions?

