DESCENTE ALLTERRAIN and BYBORRE present the Mizusawa Down Jacket


This signature jacket, who’s name comes from DESCENTE’s apparel factory, located in the Japanese town formerly known as Mizusawa, was first designed for the 2010 Japanese Olympic team. Now one of their leading styles, the Mizusawa jacket seemed like the perfect garment to introduce the exciting partnership between BYBORRE and DESCENTE ALLTERRAIN.

The On-Pattern 3D™ textile lines the inside of the jacket and was designed to create optimal airflow when worn. The three-dimensionality is a result of how and where the front and back layers attach in combination with the polyester fill yarn. For this liner, blisters have been designed for specific spots throughout the jacket patterns, corresponding to points on the wearer’s back that release the most heat. This specifically designed airflow creates space between the jacket liner and the layer underneath; trapping heat where needed and providing optimal air circulation at targeted spots within the jacket.

 It was crucial that the material used in the liner enhanced this already high performing garment which leads to BYBORRE's choice to use Meryl® Nylon. Meryl® is an industry leading nylon supplier who pushes the boundaries for performance, functionality and sustainability. The Meryl® Hydrogen yarns used in the liner fabric give exceptional breathability, elasticity and soft feel.

This BYBORRE INSIDE textile exemplifies DESCENTE ALLTERAIN's high performing Mizusawa jacket through technical materials, radiant colors and functionality through knit design.


BYBORRE launches the Mizusawa Down jacket in collaboration with DESCENTE ALLTERRAIN. The Mizusawa Down jacket is now available and shipping worldwide via


The Mizusawa Down jacket is available now on and on October 26 on

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Photo credit

Campaign images: Bram Spaan

On-body photography: Victoria Yanchuk (Team BYBORRE)


BYBORRE® is a pioneering textile company founded in 2015, and dedicated to transforming the textile industry through responsible creation and transparent sourcing. Merging physical and digital worlds, BYBORRE® pioneers material innovation, transparency and textile customization to make responsible textiles accessible, worldwide.

By questioning industry norms, BYBORRE® invites others to think differently and become part of something bigger—a movement that redefines the future and possibilities of textiles.

(Dutch version)

BYBORRE® is een impact gedreven textielbedrijf opgericht in 2015 en toegewijd aan het transformeren van de textielindustrie door middel van verantwoorde creatie en transparante sourcing. Door fysieke en digitale werelden te combineren en integreren, loopt BYBORRE® voorop op het gebied van materiaalinnovatie, transparantie en textiel customization om verantwoorde textiel wereldwijd toegankelijk te maken.

Door de normen in de industrie uit te dagen, nodigt BYBORRE® anderen uit om anders te denken en deel te worden van iets groters—een beweging die de toekomst en mogelijkheden van textiel opnieuw definieert.

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