Cortazu Mountain INS Jacket 10M men's in Black, front view on model

Cortazu Mountain INS Jacket 10M men's in Black, back three-quarter view on model

Load video: Cortazu Mountain INS Jacket 10M men's in Black, video on model

Cortazu Mountain INS Jacket 10M men's in Black, full-length front view on model

Cortazu Mountain INS Jacket 10M men's in Black, hand pocket in use

Cortazu Mountain INS Jacket 10M men's in Black, worn as a midlayer under a shell jacket

Cortazu Mountain INS Jacket 10M men's in Black, inside mesh pocket with Cortazu label

Cortazu Mountain INS Jacket 10M men's in Black, inside zip pocket

Cortazu Mountain INS Jacket 10M men's in Black, cuff detail

Cortazu Mountain INS Jacket 10M men's in Black, collar and front zip close-up

Insulated jacket · Men

Mountain INS Jacket 10M

Warm enough to wear on its own, or to fit under a hardshell jacket.

€169

incl. VAT

Colour: Black

Size: XS

XS S M L XL XXL

Regular fit · Model is 191cm, 90kg, and wears L

Only 4 left

Free shipping over €100 & 21-day returns in the EU
3-year warranty

Complete the outfit

Create your look

For every product sold, we regreen 100 m² of land with Justdiggit

Recognised by · sold at

Product description

The Mountain INS Jacket 10M is warm, packable, and breathable, perfect for layering in cold conditions or as a standalone piece.

This insulated jacket is water-resistant with lamination, but not waterproof. Using 80g featherless Sorona® insulation, we create warmth without using any nature-damaging components and partly biobased materials.

Key features include SBS™ zippers, a packable design, an adjustable hem, and 4 pockets. The jacket has elastic bindings and embroidered logos.

Thanks to customer feedback, the Mountain INS Jacket 10M now has the perfect fit and added lamination for increased water resistance. The Regular fit ensures unrestricted movement and accommodates one extra layer for added warmth

Technical specifications

Technical Features

Main fabric: 100% Laminated recycled nylon
Insulation: Featherless Sorona® 80 g 37% biobased renewable insulation
Breathability: Highly breathable
Fabric denier: 15Dx15D
Product weight: 560 g
Water-resistant: PFAS-free DWR treatment

Pockets

One chest pocket with a zip
Two hand pockets
One internal pocket

Storage

Fully packable in its own pocket

Zippers

SBS Zippers are used on all zippers

Product fit & layering

Fit: Regular fit with room for 1 layer underneath
Adjustable hem: Easy adjustment at 2 places with elastic drawstring
Cuffs: Elastic cuffs

Measurements

Center back length men’s: XS 74, S 76 cm, M 78 cm, L 80 cm, XL 83 cm, XXL 86 cm.
Center back length women’s: XS 70 cm, S 72 cm, M 74 cm, L 76 cm, XL 79 cm, XXL 82 cm.

Sustainability

We believe great products start with strong values. That’s why our manufacturing emphasizes transparency, long-term partnerships, and a people-first approach. We prioritize fair working conditions and sustainable practices, backed by our B-Corp certification.

We choose manufacturing partners based on verified social audits, assessing fair wages, safe conditions, reasonable hours, and workers’ rights. This ensures our products meet high ethical standards.

By building lasting relationships with trusted suppliers, we maintain control over our supply chain and work only with those who share our values—delivering outdoor-ready products with minimal environmental impact.

Care & warranty

Care Instructions:

Close all fastenings before washing. Use a gentle cycle at 30°C. Avoid bleach, chemicals, and fabric softeners. Tumble dry on low heat and iron at a low temperature if needed.

Our technical fabrics are designed to perform; fabric softeners interfere with their breathability and water-repellent properties, so skip them.

For insulated pieces, tumble dry separately on low heat with a few tennis balls to help restore the loft. No dryer? Give the garment a good shake and gently redistribute the filling by hand.

Product warranty & repais:

We offer a 3-year warranty on all our Cortazu items. We also offer a repair service for your garments. For more information on warranty and repairs, click here.

Warranty

3-year warranty

Read the warranty terms

Try it on

Flagship store Amsterdam

Bilderdijkstraat 136H, Amsterdam. Or order online, with 21-day returns in the EU.

Plan your visit

Mountain INS Jacket 10M Black | Men

€169

Highlights

Made for

Cold days
City

Warmth

None
Light
Warm
Warmest

Fit

Athletic
Regular
Relaxed

Key specs

Weight: 560 g
Water-resistant: PFAS-free DWR treatment
Breathability: Highly breathable
Main fabric: 100% Laminated recycled nylon

Why you need this product

Made for
Insulated jacket, as a layer or on its own
Light, windproof and packable: wear it under a hardshell on cold days or on its own when it is dry. Made for everyday wear and winter days in the snow. Made from 100% recycled nylon.
Insulation
Featherless synthetic insulation
Featherless Sorona® 80g insulation keeps you warm without bulk. The water-repellent outer is PFAS-free. The insulation is 37% biobased and renewable.
Details
Packs small, layers easily
Low bulk under a shell, packable for travel, and a clean look for the city. Our warmest layer.
Certified B Corp™ · 1% for the Planet

The Cortazu Impact

We are a Certified B Corp and a member of 1% for the Planet. For every product sold, we regreen 100 m² of land with Justdiggit.
Our goal: regreen 100 million m² of land. So far, our contributions have supported an estimated 10,951,429 m² of landscape restoration.
Our impact

What our customers say

Good to know

Can I try it on first?

Yes, in our store at Bilderdijkstraat 136HS, Amsterdam.

How do I keep it waterproof?

Wash at 30°C with liquid detergent or a technical wash, without fabric softener. If water stops beading, wash and dry the jacket first, then reapply a water-repellent treatment.

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