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Forclaz MT100 Down Puffer Vest

Sale price: $69.99 Regular price:

Lightweight and compressible, this sleeveless down vest lightens the weight of your bag, while providing good warmth.

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Sale price: $69.99 Regular price:

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San Francisco, 735 Market St. Options

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Model: 8397299

Product Videos

Product Features

A photo of the Forclaz MT100 Down Puffer Vest in use

Forclaz MT100 Down Puffer Vest | Our team of enthusiasts designed this RDS-certified* feather and down vest for hiking comfortably in cold weather.

Lightweight and compressible, this sleeveless down vest lightens the weight of your bag, while providing good 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

Water repellent

Surface-treated outer fabric to prevent water from getting in


This vest weighs approximately 7.8 oz in size M.1.2 oz/m² fabric; 15 denier

Product Customer Reviews

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1041 Reviews
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Forclaz   MT100 Down Puffer Vest,asphalt blue
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Great Vest

Very warm and very light. Packs down to nothing to put in my golf bag. It's much better than expected. You'll definitely need to go up a size.

Very warm

Great price/Great product

Great value and quality except for zipper

Shell and down are great quality. The zipper works after you get it started. I have had a difficult time getting the zipper started.


Warm and light

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Hello Manny,


Thank you for taking the time to write to us about your product experience. We truly appreciate your feedback.


We would really appreciate it if you could also drop us a google review, it will help others find out about our store easily: 


Wishing you a fantastic day :)

Thanks & Regards,

Decathlon Brampton Team

Frick'n Wicked!

Are you kidding me? Stupidly light weight, warmth of down, wind resistant...all for 60 bucks? Mic drop. P.S. My new best friend for dog walking and cross-country skiing on those cold winter days in Ottawa/Gatineau :)

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Nice and comfy down vest and quality


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nice jacket

My second one of these jackets so thats a comment on my liking for them. Their weakness like many jackets of this material is the ease at which they rip. Light weight, packs small if required and warm great for everyday use

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Very Warm For The Weight.

Good warmth and lightweight. Good fit. I didn't realise that the gilet packs away into it's own pocket which was an added bonus. I always unpack it and put the gilet on a coat hanger if I'm not going to use it for a day or two to try and minimise the down clumping up in places or the gilet becoming overly creased.

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Very slim fit - Size Up

I have been on the lookout for a reasonably priced down gilet and eventually decided on this forclaz gilet. In the short time i wore it, i could feel the warmth from wearing it but i have had to return as it is just too slim fitting. I ordered a medium, my usual size. I have a 38 inch chest and 32 inch waist but found it just an inch or so too tight and any kind of movement caused it to bunch up around my upper chest. Not a good look. I'm currently deciding wether to size up or look elsewhere as i also found the two pockets a little on the small side and the zip just didnt feel right. I did like the price point, style and of course warmth so i would advise anyone buying this gilet to purchase a size up unless you are exceptionally slim.

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Perfect for all day wear

So light and comfortable that hardly know it is on. The down filling adds that extra layer to keep warm. I’m normally a medium but this gilet is a very close fit so I went for large and it’s fine. Cannot comment on water repellency as I wear it under a jacket.

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very good quality

This is the best gillet I've had, really nice to wear, very light but warm I'm usually a size xl but ordered xxl and fits perfect you will not find a better one for the price or double the price it's a no brainer

Good value gillet

This is the cheapest gillet I have - yet it’s warm, is light and packs down really small into my rucksack. It’s not got great water reliance but it withstands a light shower. Great value for money.

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Down Jacket

Very good all round can be used for work, casual dress or mountains.

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Brilliant light body warmer.

Really light weight item. Very warm over a fleece mid layer. Useful zipped pockets take a big wallet and XL sized phone with ease. Folds down to a tiny pack size when the weather warms up.

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Excellent quality for the price

Bought size medium and size large for my husband, he was a little disappointed that the large was the better fit; but to be fair he is probably somewhere between the two sizes. This is similar quality to another lightweight gilet I looked at which was double the price. It’s been worn almost every day since Christmas so a great success. I was able to return the other size by post even though I bought in store, very quick and easy process once I’d emailed customer services.

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Size Guide

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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 vest?

A vest helps keep the body warm: It protects the chest, neck, and kidneys from the cold, as these areas a especially sensitive to chills.It is 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 11°F extra warmth when compared to a down jacket worn without the vest.

The advantages of a duck down and feather fill

The fill power of down has 3 advantages for mountain sports:- Thermal insulation provided by the air trapped in the down and feathers- Ultra low weight: Down is lighter than synthetic fill 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 fill

The fill power is a measure of the down's thermal insulation capacity and its potential to ”trap” air. It is expressed in in³ (cubic inches).So, down with a higher fill power (higher in³ number) will occupy more space, trap more air, and provide greater thermal insulation.For this sleeveless down vest, with its 85% down/15% feather filling, the fill power is guaranteed to be 800 in³ or more (European standard).

What is rds certification?

RDS or “Responsible Down Standard” is a worldwide certification issued by an independent organization 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 are committed to sourcing down humanely, using plumage from waterfowl that have undergone no undue harm.To find out more:

Weight of the fill

2XS: 2.4 ozXS: 2.5 ozS: 2.7 ozM: 2.9 ozL: 3.1 ozXL: 3.3 oz2XL: 3.6 oz

How to care for a down and feather vest

The down vest can be worn throughout the winter and will certainly need to be washed. Follow our guidance by copying the link below: summary:1/ machine wash, 86°F, with 2 or 3 tennis balls. Gentle spin cycle.2/ tumble dry with 2 or 3 tennis balls, repeat 2 or 3 times until it is completely dry

How to repair a vest

A tear on a padded vest can happen when backpacking! The good news is that it can be repaired and you can prevent the tear from getting bigger or the feathers from coming out.Don't feel at ease carrying out this repair yourself? Don't worry! Our in-store Decathlon workshops offer a repair service to mend your padded vest using a heat-bonded patch.

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 material of this down jacket is water-repellent; we recommend wearing a waterproof jacket over it in the event of prolonged exposure to rain.The fabric is made water-repellent by treating its outer surface; however, this property may deteriorate with use.We recommend that you restore it after each wash.

How to reactivate the waterproofing properties

After washing your padded vest, we recommend that you use a water-repellent reactivator spray to preserve the hydrophobic properties of the outer fabric restores the water-repellent properties of the fabric and optimizes the performance of your garment throughout its lifetime.

Product testing

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

Storage instructions

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



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Size Guide Visual