User Review: The North Face Tundra 3D

I spent a night in my North Face Mountain tent and Tundra bag. The temps dipped to minus 9 degrees. I was a little cold in the bag by morning. I did wear some wool socks and thermal underwear. All bags seem to exaggerate their ratings. But all in all I love this bag. It is warm in any temps above zero degrees. But if extreme winter camping is for you, then get the NF Darkstar (minus 40 rating)