Centennial Collection MicroTherm® 1000 Down Jacket

In 1957, Eddie introduced a down jacket that wasn't a jacket at all, it was an undershirt. While by that time several other manufacturers had joined him in making down outerwear, Eddie now had a different idea—ultralight insulated layers. His Style 25 Down Undershirt was a sensation and over the years inspired many variations, including our original MicroTherm, introduced in 2011 as part of our First Ascent mountaineering gear.

The Centennial Collection MicroTherm 1000 is the next generation of this innovative design, an example of continuous product evolution. It features 1000 fill power Premium Goose Down for extraordinary warmth at minimum weight. It also refines the signature microchannel quilting of the original MicroTherm with discontinuous channel construction to further enhance the thermal efficiency and to prevent cold spots. Full-range mobility is assured with the armhole stretch panels, and the jacket packs into its zip chest pocket for easy transport.