I thought so too, until I spent 2019 Thanksgiving in Banff, Alberta. -20°F (-30°C) is a real change in perspective of what cold is. You absolutely need layeri

I thought so too, until I spent 2019 Thanksgiving in Banff, Alberta. -20°F (-30°C) is a real change in perspective of what cold is. You absolutely need layering, as the equipment you need to be comfortable outside is way more than a jacket.