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Mountain INS Jacket

Our new and updated insulated jacket. Lightweight, windproof, improved water-resistance with lamination, and fully packable. Functions both as a mid-layer and as a standalone. Made from 100% recycled nylon with 80g featherless Sorona® insulation, being 37% biobased and renewable insulation.

Sorona® Insulation

Sorona® Insulation is 37% biobased, renewable, superlight yet warm, and completely featherless. Featuring PFC-Free DWR coating. This fabric, with its insulation, provides you with complete protection as a mid-layer or standalone piece.

Take care of your products

Our products are made with the highest sustainable standards. From recycled materials to being free of chemical PFAs & PFOs. To extend the life of your products, but also help them perform the way they were intended. Taking a few simple steps can preserve their functionality, appearance, and technical features, so you’re always ready for the next adventure. Learn more about product care here.

Cortazu
Recycled & PFA/PFO free Sustainably made

We make high-performance outdoor items from recycled and quality materials. Built to last, not replaced. Every product is designed to minimize impact and go the distance.

We're open about our impact: the progress we're making and the goals we want to achieve. And take the extra step to protect the outdoors. We're officially B Corp certified and a member of 1% for the Planet.

For every product sold, we regreen 100m² together with JustDiggit.

Get out there. For the better.

Cortazu

Sorona® Insulation

Sorona® Insulation is 37% biobased, renewable, superlight yet warm, and completely featherless. Featuring PFC-Free DWR coating. This fabric, with its insulation, provides you with complete protection as a mid-layer or standalone piece.

completely featherless

superlight yet warm

37% biobased renewable

learn more
Customer Reviews
4.9 Based on 95 Reviews
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