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Forclaz Trek 900, Warm Down Hiking Jacket, Women's

Sale price: $149.00 Regular price:

This RDS-certified*, compressible down and feather jacket is also reinforced on the shoulders and hood.

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Sale price: $149.00 Regular price:

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Model: 8502893

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Product Features

Forclaz Trek 900, Warm Down Hiking Jacket, Women's is designed for This down jacket has a filling power of 660 CUIN and heat-sealed seams so you can comfortably trek down to 0°F.

This RDS-certified*, compressible down and feather jacket is also reinforced on the shoulders and hood.

A photo of the Forclaz Trek 900, Warm Down Hiking Jacket, Women's in use


Comfortable between 23°F and 0°F. RDS down with a fill power of 660 CUIN

Compact design

Can be stuffed into its inner pocket to save space in the backpack.

Water repellent

Completely water-repellent fabric. Waterproof hood and shoulder inserts.


Strengthened shoulder panels and cuffs for abrasion resistance.


Ventilation zippers help evacuate heat generated by the body


This down jacket only weighs 1.1 lbs in size S

Product Lifestyle Image Gallery

Image Gallery

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray 

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray 

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray 

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray 

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray 

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray 

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray 

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray 

Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray

Product Customer Reviews

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Forclaz Trek 900, Warm Down Hiking Jacket, Women's,carbon gray
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Great Jacket

Bought this to replace my old faithful version of the same jacket, which my cat attacked and de-feathered. I loved it so much, that I bought exactly the same one again.

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Great buy

Really love this down jacket. Especially the slightly longer length on these cold wintry days

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Bought for belaying and keeping warm in UK

Surpassed expectations. I'd been on the hunt for a 600 fill+ down jacket for belaying during outdoor climbs and keeping warm on the mountains... something that would suit year-round UK weather conditions. For reference, I ordered this jacket, alongside Marmot Mt Tyndall, Patagonia Fitz Roy and Montane Cloudmaker (all of which were 650 - 800 down fill, and cost between £200 - £350 at the time). In comparison, the Marmot Mt Tyndall deserved the price tag. As for the other two, the fit, warmth and quality did not match this jacket. It's very lightweight, keeps the backside warm, however, it's not very durable. But treat it well and this jacket will repay you. I've been in -3 degrees celsius wearing this and survived just fine. For the price-tag, no complaints.

Brilliant quality and value

Well made, warm , great price and value

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Good product

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Good Afternoon

Thank you for your review, I'm glad that you like the jacket and I hope that we see you again soon.


Fabulous Down Jacket

Surprisingly light and toasty warm but not unbearably so.

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Very thin fabric

This was a super Christmas present and arrived very quickly. The colour and style are perfect and it is super warm. However having only warm it half a dozen times I noticed some down on the back. To my horror I found a small tear in the fabric. It is so thin and I have no idea when or how it could have happened. I am so upset as I love the jacket :(((

Another ace product from Decathlon

Fab jacket warm and light. Hood well fitting does not obscure view.

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Good fit

Nice jacket, length makes it a good fit for me.

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Really warm but lightweight!

Easily fiolds away into built in pouch. Good fit. Medium = size 12.

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great warm jacket -fabulous

so pleased with this jacket my brother bought for me for xmas last year ,after seeing one my sons girlfriend had purchased , very light ,very warm folds down into small bag - love it I bought a medium am a size 10

Confirms what the product will accomplish.

Easy to wear and is excellent at keeping your warm even in strong winds and minus 10 degrees. Good value for the money.

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The quality of this jacket is fantastic, definitely equal to those of 4 times what I paid for it. I wasn't sure about the colour when I ordered, but when I received it I found it was actually a lovely looking jacket! Very happy with this, quality and style! Can't believe how much of a bargain it is!

Really impressed!

I've been mountain walking for years and have owned down jackets by Rab, Mountain Equipment, and have a Montane jacket at the moment. I wanted a down jacket for my girlfriend and although the online write-up looked very good there is nothing like seeing a jacket in front of you. The jacket is every bit as good as the write up! Really nice fabrics, great loft, lovely touches to the design such as the cuff gaitor being slightly hidden up the reinforced fabric sleeve and the pocket zips being concealed. Pit ventilation zips on a product of this price is amazing. I loved it as soon as I got my hands on it and my girlfriend does too. Would definitely recommend! 100%

excellent for extreme cold weather

Light weight and easy to carry with protection from extreme cold weather

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Size Guide

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Additional Product Information



  • 15% Grey duck feather
  • 85% Grey duck down

Main fabric

  • 100% Polyamide


  • 100% Polyamide


  • 100% Polyamide
  • 26% Spandex


  • 26% Spandex
  • 74% Polyester cationic


  • 26% Spandex
  • 74% Polyester cationic

Thermal insulation

This down jacket, worn as a 3rd layer, has been certified for a comfort activity temperature of 0°F during a standardized 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 3 mph wind. In our heat comparison tool, it represents 4 stars. We have also tested this model in "static" mode; the comfort temperature is 23°F in this case. Heat-sealed compartments.

*what is rds certification?

RDS-certified ethical down (Responsible Down Standard). Thanks to our traceability system, we can guarantee the origin of the feathers in accordance with our commitment to use responsible materials. Our suppliers commit to using only feathers from ducks raised for their meat and slaughtered before down and feathers are collected.

Filling power of down/feather stuffing

For this down jacket with its 85% down/15% feathers filling, the fill power is guaranteed to be 660 CUIN or more (European standard). The fill power is a measure of the down's thermal insulation capacity and its potential to "trap" air. So, down with a higher fill power (higher CUIN number) will occupy more space, trap more air and provide greater thermal insulation.

What are the advantages of a duck down and feather filling?

The durability and fill power properties of down give this jacket 3 qualities for hiking: - Thermal insulation thanks to the air trapped in the down and feathers - Ultra lightweight: down is lighter than synthetic padding while offering the same degree of warmth. This saves even more weight in your backpack - Ultra-compressible

Reducing the risk of feather loss

The main stitching of the compartments containing the down and feather are heat-sealed to prevent the loss of feathers.

In case of rain

The material of the down jacket is water-repellent. It lets drops of water roll off the fabric, delaying water getting in the jacket and giving you time to find shelter. The shoulders and hood of the down jacket are waterproof as they are more exposed to the rain. We nevertheless recommend wearing a waterproof jacket over the down jacket in the event of prolonged exposure to the rain.

How do i wash my feather down jacket?

A few tips: close all the zippers on the down jacket and use a synthetics washer-dryer cycle at 86°F. To maintain the filling and warmth, it's even better to add 2 tennis balls in the machine . Be sure to select a gentle spin cycle: too strong a spin may create feather balls that are difficult to undo. Follow our guidance by clicking on the link below:

How do i dry my down jacket?

When you take your down jacket out of the washer-dryer you will think that the down has disappeared. The WASHER-DRYER is the best way to reinflate the feathers. Put your down jacket in the washer-dryer with 2 tennis balls. Set it for 2-3 drying cycles. If you don’t have a tumble dryer, you can always dry your down jacket on a clothes horse and keep regularly tapping it.

How to restore water-repellent properties?

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

A score for comparing the products' environmental impact

The environmental impact of the product is calculated over its entire lifecycle using various indicators. An overall ABCDE score is given to help you easily identify products with the best environmental performance by comparing products of the same type (T-shirts, pants, backpacks, etc.). Decathlon actively promotes this environmental rating initiative. For further information:

Weight of the filling

XXS: 5.1 oz XS: 5.4 oz S: 5.6 oz M: 6 oz L: 6.3 oz XL: 6.9 oz



Product testing

All our down jackets have been laboratory tested on thermal mannequins in 3 mph winds, reproducing a hike with moderate exertion. This allows you to make the right choice by comparing the level of thermal insulation on a scale of 1 to 5.

Storage instructions

Store on a hanger in a clean, dry place

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