This is a warm jacket, there is no doubt about it. In 40 * F, with wind, I was comfortable walking around with a T-shirt under.
However, as with most North Face products, the sizing is very odd. I am 5' 11", 165 lbs, so a pretty average sized guy. The small fits well enough through the torso and chest but is SHORT; conversely, the Medium was long enough, but I swam in it. Even with the small, there is waayyyyy too much cloth in the arms. The arms look like the arms of those tunics that medieval princes used to wear, where they balloon out from bicep to mid forearm and basically just look ridiculous. Even in the small, there was too much material in the body.
I can squeeze this under my MHW Typhoon shell for blizzards/cold rains, but it's TIGHT in the arms and restricts motion. Also VERY bulky for taking along on fall backpacking trips; I packed into the Maroon Bells this fall, and this took up a gigantic chunk of space in my pack.
All in all, a decent coat for around town and casual use. Would highly NOT recommend for outdoor activities, due to poor fit and sizing and use of extra material...only person whose arms would fit normally in the Denali Wind Pro sleeves would be Arnold Schwarzenegger.
Will be returning and looking for a similar product from Pata or Marmot.