DESCENTE / ALLTERRAIN / Mizusawa Down Mountaineer Down Jacket 2026 Model

View the Oversized Model >>

DESCENTE / Mizusawa Down
A Japanese sportswear brand specializing in the development and production of performance apparel. Through its “ALLTERRAIN” collection, DESCENTE draws on decades of experience in sportswear to create functional designs suited to a wide range of settings.







An evolved, highly durable premium nylon material
The 2026 model has been updated with a PFAS-free nylon outer fabric.

Beyond its environmental benefits, the new material offers enhanced durability for long-term use, along with a more refined, sophisticated look suited to the urban environment.

The fabric is less prone to developing a whitish appearance from wear, allowing it to maintain its beautiful look for longer. Its excellent color clarity also gives dark shades such as black a deeper, more sophisticated tone.

The supple, soft feel characteristic of nylon is another highlight, providing a more comfortable wearing experience than previous models.





“HEAT NAVI” that converts light into heat
The lining features DESCENTE’s proprietary “HEAT NAVI” heat-retention system. It absorbs nearly all wavelengths of light and converts them into heat, helping to raise the temperature inside the garment.

Not only in sunny conditions, but also on cloudy days, the system efficiently utilizes even small amounts of available light, helping maintain comfortable warmth outdoors in winter.





Exceptional water resistance that defines Mizusawa Down
One of the weaknesses of conventional down jackets is water entering through stitched areas.

Mizusawa Down eliminates outer stitching through heat-bonded non-quilt construction. In addition, seam tape processing is applied to sewn areas to prevent water penetration and achieve outstanding water resistance.





A certification that is kind to both birds and people
This jacket uses traceable 750FP French white duck down certified by “DOWNPASS.”

The certification guarantees that the down is sourced in accordance with animal welfare standards and that strict quality standards are maintained throughout the process.

※You can verify the certification by entering the code on the dedicated website. For this model, the registration is in English, so please select “EN.”





The “Para Hood System” allows the hood to be stored compactly, helping prevent water and snow from accumulating around the hood area. Water-resistant zippers are used in key areas to further enhance water resistance.



The high-neck design helps keep cold air out, while down insulation in the neck area helps retain warmth. Details such as the inner rib-knit collar, double-layer cuffs, drawcords inside the side pockets, and powder skirt inside the hem help block wind, retain warmth, and improve the fit.







The "Dual Zip Ventilation" system on the front zipper uses two rows of zippers with mesh fabric between them, allowing fresh air to enter while releasing excess heat and moisture trapped inside the jacket.



Pit zips are also incorporated under the arms to further enhance comfort.



In addition to the front pockets, waist pockets are also included.





Pockets are placed on both inner chest areas, providing ample storage capacity without the need for a bag.





The Mizusawa Down “Mountaineer” features a sharp, streamlined silhouette with all unnecessary bulk stripped away. Its clean fit naturally follows the body’s lines, minimizing the bulky appearance often associated with down jackets while creating a sophisticated urban look.

The three-dimensional pattern design provides comfortable freedom of movement around the shoulders and arms while creating a beautifully balanced shape from both the front and side.

Despite its substantial down filling, it maintains a clean, streamlined appearance when worn, making it versatile enough for everything from business settings to relaxed weekend styles.