Mike--I'm not sure what camo pattern your Cabela's snow camo has, but I have a set of insulated Snow Shadow camo coveralls from Cabela's that are extremely warm. They are so warm, in fact, that it has to be -20 or below before I put them on. I roast in them otherwise.
Here's a photo of me in them one morning when it was in that -30º range for temp. I was warm as toast in these things. I also wear an insulated underwear top inside these and blue jeans along with a couple of pair of socks inside the old felt lined Sorel pack boots.
When it is -19º or warmer, I wear all of the above (minus the Snow Shadow camos) plus and old pair of insulated Advantage Camo coveralls and an old pair of white painter's coveralls from J.C. Penney's. Both my hunting partner and I have these white coveralls to go over inside clothing.
