While many companies claim to make the last jacket you’ll ever need to buy, the designers behind the One Shell appear to have actually accomplished it. Their 5-in-1 jacket system has everything you need to stay comfortable and dry in nearly any conceivable weather condition.
The One Shell is essentially an outer layer matched with a variety of interchangeable zip-in layers. It’s made from Dyneema so it’s fully waterproof, wind-resistant, lightweight, and breathable — there’s even an internal eVent membrane with a C6 DWR treatment for added comfort and protection from the elements, and it even folds down into a small packable bag. You can add warmth without the sweat by zipping in the fast-drying Hybrid layer with Polartec Alpha insulation. And if you’re walking into an extremely cold environment you can zip-in the Freeze layer that features aerogel technology developed by NASA for aeronautical applications to form a total temperature barrier. Each of the layers can be purchased separately and worn as a stand-alone winter jacket or combined to form an all-weather system.