Well, I spent 6 days and nights up in the Northern Arizona Elk country!
I think the coldest night was 30F that's +30! 50 degrees more toasty than the good Col Whelen claims it can be used.... I did not build a fire in front of it. My sleeping bag is just fine.
Never got wet so I could not test the water proof or shedding capability. In 2015 this same hunt rained every day. This year, not a drop.
The Whelen looks even nicer surrounded by trees!
but then.... when we got 20 to 35 mph winds gusting to 50 on Friday only.
It was nice set up!
In my group of 4, my son got the one elk.
Poole