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Forclaz Men's MT100 Down Puffer Vest

Sale price: $60.00 Regular price: $79.99

Lightweight and compressible, this sleeveless down gilet filled with 90% down and 10% feathers lightens the weight of your trekking bag, while providing good warmth.

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This product runs small

Sale price: $60.00 Regular price: $79.99

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San Francisco, 735 Market St. Options

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About this item:

  • Warmth: RDS ethical down with a fill power of 800 in³. Jacket hem tightening.
  • Compact design: Easily folds away into its left-hand pocket using a zipper with double pull
  • Weight: ~ 7.8 oz in size M. 1.2 oz/m² fabric; 15 denier
Model: 8397299

Product Features

Forclaz Men's MT100 Down Puffer Vest | Our team of hiking enthusiasts designed this RDS certified feather and down gilet for hiking comfortably in cool weather.

Lightweight and compressible, this sleeveless down gilet filled with 90% down and 10% feathers lightens the weight of your trekking bag, while providing good warmth.

A photo of the Forclaz Men's MT100 Down Puffer Vest in use
A photo of the Forclaz Men's MT100 Down Puffer Vest in use


RDS ethical down with a fill power of 800 CUIN. Jacket hem drawcord

Compact design

Easily folds away into its left-hand pocket using a zip with double puller

Water repellent

Surface-treated outer fabric to prevent water from getting in. PFC-free


2 zipped hand pockets

Abrasion resistant

Outer fabric: 100% polyamide, 35 g/sqm. 15 denier


This sleeveless jacket weighs approximately 220 g in size L

Questions & Answers

Look for product information, frequently asked questions, opinions...


Does Decathlon ever stock this vest in the color Black? All my other Decathlon jackets are in black so I don't need a blue one. Thanks


We only carry the blue color of this jacket for this season. Next season will start from September 2024. We will be taking your feedback for our next collections' color selections.

By Uluç on May 30, 2023 | STAFF

Product Customer Reviews

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Very satisfied with my…

Very satisfied with my purchased products

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Light, warm, stackable

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Good product, excellent value for money

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Good buy

I recommend

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I'm 190 slim waist 96 I bought a L Perfect

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Light warm vest

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Super compact down jacket

As a warm layer under the waterproof layer, this sleeveless down jacket is really great! Super compact once folded, it fits easily in the bag when the temperature rises. Sleeveless allows you to stay warm without losing mobility or feeling like you're stuck in your coat. It should even be able to find its place under a jacket to go to work ;-)

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Good item

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Cool and elegant vest

The vest gives a lot of warmth to the back and looks stylish.

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Happy with the result but...

He wore it very comfortably and comfortably. It keeps heat well and is not heavy. The only thing I don't like is that the material is very thin and if you make a hole you lose the feathers.

Down jacket ordered to go…

Down jacket ordered for a trip to Egypt, chosen for its compactness and mid-season thickness. Perfect for my husband

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Excellent choice for everyday wear

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Meets my needs

Meets my needs

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Size Guide

Size Guide Visual

Additional Product Information


Padding: 90.0% Grey Duck Down, 10.0% Grey Duck Feather ; Main lining: 100.0% Polyamide ; Main fabric: 100.0% Polyamide ; Padding - Inner fabric: 100.0% Polyester

Why wear a down gilet?

A gilet helps to keep the body warm. It protects the chest, neck and kidneys as these areas are especially sensitive to chills. It’s sleeveless so it saves weight in your backpack, provides even more breathability during exercise and excellent comfort of movement when worn under a jacket. Worn underneath the MT100 down jacket, it can provide 6°C extra warmth when compared to a padded jacket worn without the gilet.

The advantages of a duck down and feather filling

The filling power of down has 3 advantages for mountain sports: - Thermal insulation thanks to the air trapped in the down and feathers.- Ultra-lightweight: down is lighter than synthetic wadding while offering the same degree of warmth. This saves even more weight in your backpack.- Ultra-compressible.

How to measure the fill power of a down and feather wadding?

The fill power is a measure of the down fts thermal insulation capacity and its potential to InchtrapInch air. It is expressed in CUIN (cubic inches). Down with a higher fill power (higher CUIN number) will occupy more space, trap more air and provide greater thermal insulation. For this down gilet with its 90% down and 10% feathers filling, the fill power is guaranteed to be 800 CUIN or more (international standard).

What is rds certification?

RDS or “Responsible Down Standard” is a worldwide certification issued by an independent organisation to volunteer brands. This standard enables us to guarantee the origin of the feathers in accordance with our commitment to use responsible materials. Our suppliers commit to using only feathers from geese and ducks raised for their meat and slaughtered before down and feathers are collected.

How to care for a down and feather gilet?

The down jacket can be worn throughout the winter and will certainly need to be washed. But the less you wash it, the more it will retain its thermal insulation and water repellency.Our advice: 1/Machine wash with a detergent suitable for down or technical garments, at 30°, with 2 or 3 tennis balls. Gentle spin between 800 and 1000 rpm. 2/ - Tumble dry on cotton mode with 2 or 3 tennis balls, repeat 2 or 3 times until dry.

Water-repellent property of component (not to be confused with waterproofing)

The water repellent property of a fabric is its ability to make water run off its surface without absorbing it. This prevents the fabric from swelling, and keeps it lightweight and warm. The fabric of this down jacket is water repellent, however, we recommend that you wear a waterproof jacket over it in the rain. The fabric is made water-repellent by treating (PFC-free) its outer surface, however this property may deteriorate with use. We recommend that you restore it after each wash.

How to restore the water-repellent properties?

Once you have cleaned your padded jacket, we recommend you use a water-repellent reactivator spray to preserve the hydrophobic properties of the outer fabric. This renews the fabric’s water repellent properties and optimises its performance throughout the lifespan of your garment.

A snag? here's how you can repair your sleeveless down jacket

A tear on a padded jacket can happen when trekking! The good news is that it can be repaired with a repair patch so the tear doesn’t get any bigger and the feathers escape. Don't you feel at ease carrying out this repair yourself? Don't worry! some in-store Decathlon workshops offer a repair service to mend your padded jacket using a heat-bonded patch.

Weight of the filling

XS: 67.5 gS: 71 gM: 76.5 gL: 82 gXL: 88 g2XL: 94.5 g3XL: 101 g

Product testing

10 trekkers (5 men and 5 women), independent of Forclaz, tested this down jacket during a week-long trek in November 2016, in the Mont Blanc mountain range. The feedback given to us after this test let us validate this down jacket for mountain trekking.

Storage instructions

Store on a hanger in a dry place.Do not store folded in its pouch.




Size Guide Visual

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