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Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie

Sale price: $15.00 Regular price: $44.99

Slim and warm, it is our most eco-designed mountain Backpacking padded jacket!

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Sale price: $15.00 Regular price: $44.99

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Model: 8492909

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Product Features

Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie | Our passionate Mountain Backpacking team has developed this down jacket to enable you to bivouac comfortably in cold weather

Slim and warm, it is our most eco-designed mountain Backpacking padded jacket!

A photo of the Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie in use


> 20,000 cycles in the Martindale test. 20 denier thread. Polyamide canvas.


Inflating polyester fill. Drawstring at jacket base.


Fill made of 25% recycled polyester. Gray lining with low CO2 impact.

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 down jacket weighs approximately 14.1 oz in size M.

Easy to maintain

Synthetic fabric and insulation that can be machine washed at 86°F.

Product Lifestyle Image Gallery

Image Gallery

Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie,dark olive green 

Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie,dark olive green 

Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie,dark olive green 

Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie,dark olive green 

Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie,dark olive green 

Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie,dark olive green

Product Customer Reviews

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Forclaz Trek 100, Men's Light Backpacking Synthetic Down Jacket with Hoodie,dark olive green
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Very very good

So, I'm someone who shivers like crazy whenever it went below 60°F in California. I used to layer up in a hoodie, a long sleeve and a T-shirt to get to school in the mornings and keep it on the entire day if it never warmed up. After joining the Army I was always sent to the hot + humid places (Oklahoma, San Antonio and Georgia) which were hot but kind of comfortable. Guess where I got stationed next...Fairbanks Alaska. When I learned that I was going to somewhere that stayed 0°F to -40°F half the year I instantly started my reseach on cheap but effective winter clothes which eventually brought me to Seeing that this jacket fit my criteria, I bought it along with a long sleeve. When I arrived in December, I was greeted with -55°F + Windchill (I think one of the coldest days in 2020?) so I immediately tossed on this down jacket with the long sleeve. I gotta tell y'all, I was ULTRA comfy and warm when I walked out those airport doors. For a month I didn't have a vehicle so I had to walk half a mile in constant -20°F to -40°F weather almost everyday which this jacket was able to keep me only regret was that I didn't have better gloves lol. My metabolism might've changed in the last 2 years but I highly recommend this down jacket!

Warm compact jacket

Love this for hiking. Keeps me warm, feels lightweight and packable

Excellent jacket, for the price

Excellent synthetic insulation jacket/hoody. It has just right amount of insulation, and it's water repellent for everyday use or as a mid insulation layer for skiing/mountaineering. Will buy again if need to: you just can't beat the price. I got it on sale for $30. Similar products from big brands (like Patagonia, Arcteryx, Marmot, etc) cost in the hundreds $. Note about the size: it runs small. I would recommend to size up, at least 1 size. Note sure why the advertised size on the website uses UK/EUR sizes, while the US size is clearly written on the jacket size label (and it's more or less accurate).

I liked my first one so much, I bought another one

When I was in Spain, I bought the yellow version of this jacket. When I saw that this jacket was on sale for $30, I couldn't pass it up. This time I got the black version. If you want a really nice 'puffer' style jacket at a great price, this is it! This jacket is amazing. The warmth to weight ratio is fantastic. It cuts wind. It has a hem cinch. The jacket is even packable. I don't think you can buy a better jacket for the money. Please be aware that these do run small. So, if you are an American, I'd order one size up! I am 5'10" and about 215 pounds. And, both of my jackets are 2XL, and they fit great!

Nice layer

Great down jacket for a layer - a windbreaker over top does a nice job of keeping me warm in most conditions. Fit is very good - I'm 5'10" 170lbs and the large is perfect. Put together well and good sized pockets as well.

Awesome jacket!

Extremely pleased with purchase. I decided to go with men's jacket because my shoulders and torso lengths are longer, women's version always awkward. Easily stuff into its own pocket. Friends think I pay 5-6 times the sale price of $30. Even without the sale price, it's a good value. It's a practical play clothing, not a fashion piece. Still, it looks pretty good.

Suprisingly Warm

For the price (on sale for $30), this jacket is very nice. My backpacking jackets are expensive down and require delicate care. This jacket is warm, seems durable, and is affordable (replaceable). I can wear this jacket how and where I please, without coddling it. The jacket isn't full featured (no hood adjustments, no draft collar,cheap elastic cuffs), but comes with a lot for what you pay. There is a rudimentary waist cinch, hood, and zippered pockets. You can almost stuff the jacket into a pocket, but it's too tight to be good for it. A small increase in pocket size would make it work. For the weight conscious my Men's, size large weighs 13.65 oz./387 g.



Warm light shower proof excellent in the wind

Excellent Jacket

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Trek 100 Jacket

Use it all winter, very nice and warm

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Synthetic fill jacket

Nice fitting jacket . Super comfortable. Just right in providing enough warmth for a Sydney winter. Wearable in shoulder seasons as well.

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Very Good Jacket

Sized perfectly from using the chart. Nice lightweight jacket. Quality looks good so far.

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Fantastic jacket for layering

Amazing jacket for the price!!!

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Great jacket

Jacket is light and very warm. Great jacket for various use and at a great price.

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Excellent product and value for money

Excellent product and value for money

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Additional Product Information


Main lining

  • 100% Polyamide

Main fabric

  • 100% Polyamide


  • 100% Polyester cationic

Durable materials

This polyamide fabric that uses 20 denier thread resists 20,000 cycles of abrasion. Martindale test, Standard 12947-2 Outer: 100% polyamide fabric 1.4 oz/sqm, 20 denier Lining: 100% polyester fabric 1.2 oz/sqm, mix of 15 to 20 denier threads

Thermal insulation

This down jacket has been certified for a comfort temperature of 21°F during a standardized test in a thermal chamber. The model wears a synthetic long-sleeved T-shirt and a light fleece underneath. It works with a simulated 3 mph wind. In our heat comparison tool, it represents 2 stars.

Technical information on the padding

We use 100% polyester fill (25% recycled). The wadding is made from silicone-coated spiral fibers that make it highly compressible and highly durable. Despite its low thickness, it has high insulation properties thanks to the air trapped inside, and remains lightweight. It remains warm even when wet.

Do you know why the inner lining of your down jacket is gray?

Because the fabric we use reduces CO2 emissions by 40%. The fabric used is innovative because it mixes a self-dyed black thread and an undyed thread. Compared to a classic dyeing process, this process reduces by: - 66% fine particle emissions (PM2.5) - 74% Eutrophication of fresh water - 68% eutrophication of sea water

Additional sustainable development information

On the Trek 100 black and Trek 100 blue models, the outer fabric uses a clean process known as dope dyeing (the thread is dyed before the yarn is woven) reducing CO2 emissions by 36%. More information:

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

The water-repellent property of a fabric is its capacity to make water run off its surface without absorbing it. This prevents the fabric from soaking up water and keeps it lightweight and breathable. The fabric is made water-repellent by treating its outer surface; however, this property may deteriorate with use. In order to reactivate it, follow the guide:


Inside flap under the zipper that protects from the wind. Elasticated cuffs, flap at the top of the collar to protect the chin. Tightening with an elastic cord and toggle at the hem. Hood with elastic bias binding

A score for comparing the products' environmental impact

The product's environmental impact is calculated over its entire lifecycle using various indicators. An overall ABCDE rating is given to help you easily identify products with the best environmental performance by comparing and contrasting products of the same type (T-shirts, pants, backpacks, etc.). Decathlon actively promotes this environmental rating initiative. More information:



Product testing

In November 2017, 6 backpackers (4 men and 2 women) with part of the Forclaz design team tested this down jacket for 4 days in the Southern French Alps. We were then able to make the final modifications and validate it for use in mountain backpacking.

Superior quality. Unbeatable prices.

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