How Down Insulation Works in a Canada Goose Parka
Down insulation feels almost magical until you understand what it is doing inside a Canada Goose parka. The warmth you feel comes from a careful system of fibers, fabrics, and design choices that together trap heat and manage moisture. In the field, I’ve peeled back the layers of a few Expedition Parkas and Langford Parka shells to see how the loft, the distribution of fill, and the way the shell breathes all interact. What follows is a practical look at how down insulation