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Our First Ascent guide team built this ultralight jacket for alpine climbing in cool to cold weather. Windproof shell is recycled ripstop polyester with a StormRepel® durable water-repellent (DWR) finish. Super high-loft 800 fill StormDown™ powered by DownTek™ sets a new standard for moisture-resistant down Each cluster is treated with a DWR finish so the down retains its loft and superior insulating properties even in wet conditions. We performed extensive tests to determine the best DWR down available, and the DownTek™ technology is clearly superior.
Active: Our most athletic fit. Close to the body without restricting mobility. Designed to fit over baselayers and lighweight midlayers.
STORMDOWN™ POWERED BY DOWNTEK™
Keeps Down Dry In Wet Weather
Down is nature's best insulator, but until now dampness rendered it ineffective. Our StormDown™, powered by DownTek™, treats each down cluster with a durable water-repellent (DWR) finish, to prevent internal moisture accumulation and preserve down's structural integrity, lightweight warmth, and exceptional breathability.
"The MicroTherm StormDown Jacket adds warmth and insulation no matter where I am and it looks pretty polished too, whether I'm high up in the mountains or in town."