Sitting on a jetliner headed to Colorado at 7 a.m., my Helly Hansen Supreme Jacket ($900) was already coming in handy. I had the hood, which fits over a helmet and can adjust to any position, pulled down over my eyes so I could sleep for as much of a 4.5-hour flight as possible. The Supreme Jacket is supposedly one of this winter’s best, so I was taking it out for a few days of skiing, snowmobiling and snowshoeing to see how it held up. The irony was that everyone working on the mountain in Beaver Creek wears Helly Hansen. It’s the mountain sponsor. I could have just called ahead and asked for their review.
Let’s just get this out of the way: this jacket costs $900. Helly Hansen’s only other offering at this price is an ocean drytop for professional sailors. This had better be good.
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When I woke a few hours later, I didn’t have much faith in the jacket: after a while, even crunched in a seat, I had forgotten I was wearing it. The Supreme wants to rival the warmth of Canada Goose, those puffed-up jackets filled with down that people drag to Antarctica and Whole Foods, but it was thin and the cut was fitted. I couldn’t imagine packing more than two layers underneath.

This is due to the four-way full-stretch fabric used in every layer of the jacket. It’s immediately noticeable and counterintuitive; the jacket, whose waterproofing makes it pretty difficult to get wet, flexes whichever way you pull it. Its interior and shell are lined with a blend of 85 percent polyamide and 15 percent elastane, which are highly durable and stretchable. When you sit, your body pulls the jacket, instead of the other way around, as is the case for typical hard shells from the past.