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Forclaz Trek 100, Light Synthetic Down Hiking Jacket, Women's

Sale price: $49.99 Regular price:

Compact and thin, this padded jacket keeps you warm and frees up space and weight in your backpack. Eco-designed, fill made from 70% recycled polyester.

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Sale price: $49.99 Regular price:

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San Francisco, 735 Market St. Options

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Model: 8558325

Product Features

Forclaz Trek 100, Light Synthetic Down Hiking Jacket, Women's | Warm, lightweight, and durable, this padded jacket helps you backpack comfortably down to 23°F because of the filling power of its technical fill.

Compact and thin, this padded jacket keeps you warm and frees up space and weight in your backpack. Eco-designed, fill made from 70% recycled polyester.

A photo of the Forclaz Trek 100, Light Synthetic Down Hiking Jacket, Women's in use


Comfortable between 41°F & 23°F. Inflating fill (4.4oz/m²) Jacket hem tightening


Fill made from 70% recycled polyester. Dope dyed gray lining.


Easily folds away into its left-hand pocket using a zipper with double pull.

Compact design

Surface-treated outer fabric (PFC-free) to stop water from getting in.

Water repellent

This padded jacket weighs approximately 11.6 oz in size S.


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

Easy to maintain

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

Product Customer Reviews

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2541 Reviews
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Forclaz Trek 100, Light Synthetic Down Hiking Jacket, Women's,purple
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Good jacket, it keeps me warm, very lightweight. Wore it when it was 30-40 degrees F with just sport bras underneath it, and I still feel warm and comfortable. It’s my new favorite jack now.

kept me warm

I have a mountain w/h ghost whipser down jacket and I wanted another one but not at that price. I decided to give Decathalon a shot. The jacket has not disappointed me so far. I went snowshoeing with it in mid 30's degrees, cloudy conditions and only a base layer. So far i am satisfied with my purchase. It has kept me warm. If i repurchase I will most likely go back to Decathalon.

Good value and comfort.

Purchased at end of season, on sale, making it an even better value

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Hi Mike,

Those are the best days! We are so glad you love this product, added bonus that it was on sale. We hope to see you back again soon on

wrong sizing

Great jacket but chexk sizes. I am 12 andordered a Large (as per size guide) and the large is really big and says 16-18 on label. will send back for a medium.

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Excellent jacket

keeps you really warm and windproof. I use this for hiking and my soft shell over this jacket. Its very light weight and packable

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Lively coat, fit perectly although had to size up 2 sizes. Warm and comfortable.

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Nice coat

Lightweight but really warm and waterproof

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I needed a larger size than I would normally wear. I find it to be idea for casual wear. Nice and lightweight.

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Great produce, light, compact, warm

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Women's mountain trekking padded jacket

Love this jacket, lightweight, really warm, waterproof even after washing, dries quickly after washing.

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Warm enough

Yes it's not down filled, but Mrs Roo loves it. Great fit, great material, easy to wash and take care of.

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Perfect. Love the colour.

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Needed something lightweight but warm for work. This is perfect size, lovely colour - matches with my work clothes and keeps me warm.

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Nice jacket in light weight

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Hi Eva,

Thank you for supporting Decathlon Hong Kong and your feedback on your experience with our product!

We sincerely appreciate your insight! It's also our pleasure to ensure you have the best experience with our products! 

We can't wait to offer you more and better products in order to delight your sport experiences! 

If you have any more questions, comments, please feel welcome to reach back out as we would be more than happy to share and assist. Hope to see you around soon!

Stay healthy!


Decathlon Hong Kong Hiking & Trekking Team


Very good, comfortable and light weight

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Size Guide

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Additional Product Information


Main fabric

  • 100% Polyamide

Main lining

  • 100% Polyamide


  • 100% Polyester cationic


- 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.

Thermal insulation - warmth

This padded jacket, worn as a 3rd layer, has been certified for an active comfort temperature of 23°F during a standardized test in a thermal chamber. The model is wearing a synthetic long sleeve T-shirt and a light fleece underneath. It works with a simulated 3 mph wind. In our heat comparison tool, it represents 2 stars. We have also tested this model in "static" mode; the comfort temperature is 41°F in this case.

Technical information on the fill

We use 100% polyester fill (70% recycled) weighing 4.4 oz/m² in the body and 3.5 oz/m² in the sleeves and hood. The fill is made from silicone-coated spiral fibers that make it highly compressible and highly durable. Despite its low thickness, the air trapped inside provides high insulation properties while allowing it to remain lightweight. It retains its warmth even when wet.

Durable materials

This polyamide fabric that uses 20 denier thread can withstand 20,000 abrasion cycles. Martindale test, Standard 12947-2 Outer: 100% polyamide fabric 1.4 oz/m², 20 denier Lining: 100% polyester fabric 1.2 oz/m², 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 capacity to make water run off its surface without absorbing it. This prevents your padded jacket 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.

How to restore water-repellent properties

The water-repellent treatment becomes less effective with time, washing, and use. Here's how to restore the water-repellent properties of your padded jacket! You can also use the care product: Treatment restoring water-repellency

What is a pfc-free water-repellent treatment?

Our water-repellent treatment is PFC-free. PFCs are used to make fabric water-repellent; however, they are toxic to the environment and people. By substituting PFCs with other technologies giving the same level of performance, we are reducing the environmental impact.

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

Because the fabric we use reduces CO2 emissions by 40% of the component in question. The fabric used is innovative because it mixes a dope-dyed black yarn and an undyed yarn. 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

What dyeing process is used?

On the Trek 100 gray padded jacket, the outer fabric uses a clean process known as dope dyeing (mass pigmentation of the thread) reducing CO2 emissions by 36% More information:

How to repair your padded jacket if it has a tear

A tear on a padded jacket can happen when backpacking, and the good news is it can be repaired! You can either mend it or apply a heat-bonded patch so that the tear doesn't get any bigger and the synthetic fibers escape. Don't feel at ease carrying out this repair yourself? Don't worry! Our in-store Decathlon workshops offer a repair service for your padded jackets.

Valuable advice for improving the durability of your down jacket!

In general, do not wash a down jacket too frequently because each wash decreases its thermal properties.

Determining the environmental impact of our products

The environmental impact of the product is calculated based on its entire lifecycle and using different indicators. A general score from A to E is provided to help you easily identify the most eco-friendly products by comparing products of the same type (T-shirts, pants, backpacks, etc). Decathlon is committed to displaying this environmental information. More information:



Product testing

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

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

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