After doing some research, it was determined that this jacket is the warmest offered by Carhartt. I have a different Carhartt jacket that I use when the temperature is down around 40.  However, once below that, I switch to this jacket.  It has the artic liner in both the jacket and hood and is very durable.  Most of my co workers and construction worker friends of mine will only wear Carhartt gear.  I've already been outside in 30 degree weather with no issues. And I hate the cold too.  The shell of this jacket is weather resistant as well and should keep you protected from snow or rain.

With all that said, I only gave my review 4 stars out of 5.  The reason for this is because I find the hood to be annoying when not in use.  The hood is very stiff and wants to be up at all times.  Several occasions now I'll be walking with the hood down, and it'll just pop right up on its own or constantly rub on the back of my head.  I did run the jacket through the washer and dryer while following directions on the tag.  I also added fabric softenor to the wash machine.  This helped relax the hood a bit, but it still has a mind of its own sometimes.

With all this said, I would buy another one of these for cold weather if this jacket ever failed.  However, I don't inticapate needing another one.