That's the kicker, it's lighter weight, but the "omni-heat" insulation* keeps me just as warm as a heavier down jacket, if not warmer. I even managed to work up a bit of a sweat while outdoors at 3am this past Feburary in my jacket.

Though I don't doubt that I'd need a heavier/longer jacket if I were further north, but here in southern Ontario it's more than good enough.

*Not an ad, just sharing what keeps me warm