Torben T.wrote a review of Montane Hydrogen Direct Jacket - Men's on April 14, 2018
Familiarity: I returned this product before using it
Fit: True to size
This seems like nice lightweight Polartec Alpha jacket. The face fabric appears significantly more wind resistant than my Patagonia Nano Air jacket and as such might function better when being used as an outer layer under most conditions. I had two minor issues that led me to return the jacket:
1) the hood was too small/short to fit comfortably (I have a relatively long neck so others may not have this problem)
2) Every time I put my hand in the sleeve to put the jacket on an inch or so of the alpha insulation pulled through the elastic cuff and I had to stuff it back into the jacket. This probably could be fixed with a few extra stitches on the forearm to tie the insulation to the outer fabric before the cuff more securely, but I haven't tried it.