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Forclaz synthetic mountain backpacking padded jacket - MT100 hooded -5 degrees Celcius

Sale price: $59.99 Regular price:

The technical advances applied to this padded jacket make it compact and thin while keeping you warm. Make trekking lighter! Eco-designed wadding made from polyester.

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Sale price: $59.99 Regular price:

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Model: 8573829

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Product Features

Forclaz synthetic mountain backpacking padded jacket - MT100 hooded -5 degrees Celcius | This hooded padded jacket combines warmth, light weight and durability. It allows you to trek comfortably in cool weather down to -5°C when active.

The technical advances applied to this padded jacket make it compact and thin while keeping you warm. Make trekking lighter! Eco-designed wadding made from polyester.

A photo of the Forclaz synthetic mountain backpacking padded jacket - MT100 hooded -5 degrees Celcius in use


Comfortable between 5°C and -5°C. Wadding filling (125 g/sqm). 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


100% polyamide outer fabric, 39 g/sqm. 20 denier

Easy to maintain

Synthetic fabric and filling that can be machine washed at 30°C


This padded jacket weighs approximately 370 g in size L

Product Customer Reviews

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Forclaz  synthetic mountain backpacking padded jacket - MT100 hooded -5 degrees Celcius,black
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Zipper snags, fabric tears as too fragile

Much to like about this jacket. Weight, fit, warmth (even when wet). HOWEVER, the zipper started catching soon after I got it, and not what external fabric is wearing and testing from very slight use. I wonder if they make a similar jacket with a tougher outer shell? Need better zippers. Cannot recommend!

this jacket is a banger!

this is a fantastic jacket! the quality is really, really good, the fit is excellent (true medium) and the price is perfect. light and airy with a lofty fill. i have lots of gear and this jacket is comparable to jackets that cost 3/4 times as much. very happy with this purchase

Great puffer

Super comfortable. Very warm. Every bit as nice as ones I’ve had in the past that cost three times as much. I’d say it fits “true to size” to “a little small” so you MIGHT need to size up.

Great Jacket

Great jacket

Low quality materials

Low quality zipper constantly jams on thin material tearing material. Now the down is falling out.

Hi, Gary!

We're sorry to hear about your experience with our jacket! If you need, please feel free to reach out to our customer service team and we'll see what we can do for you!


QC Issues

I had last year M size, This year, I grew up a bit (pandemia effect), Ordered L size, The shell used it is different, the M size I had, it was thicker and shinier, more wind and water resistant, the new one I’ve got is way thinner, and opaque, highly dough it is water repellant at all, also some feathers sticking out Asked for a return, You let me down on this, I DO LOVE YOUR COMPANY AND PRODUCTS IN GENERAL, AND FOR SURE WILL KEEP BUYING FROM YOU, THIS IS FOR YOU TO IMPROVE, AND TAKE ATTENTION IN SOME DETAILS

Thank you for taking the time to share your review of Forclaz Trek 100, Lightweight Synthetic Down Packable Puffer Jacket, Men's with us. This hooded padded jacket combines warmth, light weight and durability. You can trek comfortably in cool weather (down to 23°F).


We are sorry to hear that you are not completely satisfied with our product.


To ensure your satisfaction, we recommend returning this product by shipping it back to us, or taking it back to your nearest Decathlon store. Please click here for details of our return policy.


Rest assured that we will transfer your information to our design and production teams.


Thank you for sharing your experience with Forclaz products.



Hiking & Trekking Team - DECATHLON

Trek 100 light backpacking down jacket with hood

Great quality, Sizes run small, I sized up and it was still too small. My son got lucky and I gave it to him. Order at least one size up. Zipper is on the left side, not a big deal but a little different. Overall good value and quality jacket.

Awesome jacket

I already had this jacket in black, so I decided to buy another color. It is perfect for light winter and If you add a sweater it can work for heavy winter as well.

My first puffy jacket

My first ever puffy jacket and I must say I love it. It quite fitting. No too loose. Has draw cord around the bottom hem which very good in windy weather. Pockets large and deep. The feature where you can compress and pack the whole jacket into one of those pockets! Winner!

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Best jacket for walking and outdoors

Love this jacket. Soft and comfortable, warm without a lot of bulk. The hood fits nicely and cuffs are snug. Well made and neatly finished, zippered pockets are an excellent feature. Have now bought another for a friend who gives it a “thumbs up”

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Best synthetic padded hiking jacket

Love this comfortable stylish padded jacket. The sizing is good, true to size. The zip pockets are a useful size and secure items inside. The hood has a good fit and sits well around the face. Lightweight but warm enough with a thermal or dritech top underneath, kept me warm on a zero degree morning hike.

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Trek 100 Puffer

Nice cut, good stitching, material is very light but still robust enough to take moderate punishment. It’s warm enough to wear from 5-18C. After all those good points, it’s also very well priced compared with equivalent from other brands.

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An honest jacket for an honest price.

My first Decathlon purchase and there will be many more.My future hiking/ hunting gear will be from Decathlon.I will purchase the next size up if and when articles are available .The coat (2xl) i ordered will be a second layer instead of a third.I look forward to 3xl stock arriving in australia so i can buy more.

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Worth in this price

Good for temperature ~10 degrees C.

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Really comfortable. Daddy loves it

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Size Guide

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Additional Product Information


Main fabric: 100.0% Polyamide ; Main lining: 100.0% Polyamide ; Padding: 100.0% Polyethylene Terephtalate

How warm is this padded jacket?

This padded jacket, worn as a 3rd layer, has been certified for an active comfort temperature of -5°C during a standardised test in a thermal chamber. The model is wearing a synthetic long-sleeved T-shirt and a light fleece underneath. It works with a simulated 5 km/h wind. We have also tested this model in static mode. The comfort temperature is +5°C in this case.

Durable materials

This polyamide fabric uses 20 denier thread (thread thickness unit of measurement) and resists 20,000 cycles of abrasion. Durability is calculated using the Martindale test, Standard 12 947-2. This test rubs the jacket's material against another material with the objective of finding the product’s usage limits.Outer: 100% polyamide fabric 39 g/sqm, 20 denier Lining: 100% polyamide fabric 35 g/sqm, a mix of 15 to 20 denier threads

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 is made water-repellent by treating its outer surface, this property may deteriorate with use. We recommend that you restore it after each wash.

How to restore 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. Just renew the fabric's water repellent-properties and optimise your garment's performance throughout its lifetime. You will find it in store and on our website by entering the reference 8554908

A snag? this is how to repair your down jacket

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

Product testing

In November 2017, 6 trekkers (4 men and 2 women) and part of the Forclaz design team tested this jacket for 4 days in the southern French Alps (Lus La Croix Haute).We were then able to make the final modifications and validate it for use for mountain trekking.

Storage instructions

To keep the wadding inflated, we recommend you store your padded jacket on a hanger and not folded up in its pocket!



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