Women's Padded jacket - MT100 - Grey


Warm, lightweight and durable, this padded jacket helps you walk comfortably down to -5° thanks to the filling power of its technical wadding.

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

Color: Steel grey
Size: size guide


Eco designed

Learn more about Eco-Designed Products.

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Product benefits


Comfortable between 5°C & -5°C.Inflating wadding (125g/sqm)Jacket hem tightening


Wadding made from 70% recycled polyester. Dope dyed grey lining.

Compact design

Easily folds away into its left-hand pocket using a zip with double puller.

Water repellent

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


This padded jacket weighs approximately 330 g in size M.


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

Easy maintenance

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

Technical information


- Inside flap under the zip 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 -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.

In our heat comparison tool, it represents 2 stars.
We have also tested this model in "static" mode; the comfort temperature is +5°C in this case.

Technical information on the wadding

We use 100% polyester wadding (70% recycled) weighing 125 g/sqm in the body and 100 g/sqm in the sleeves and hood.

The wadding is made from silicone-coated spiral fibres 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 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 39g/sqm, 20 denier
Lining: 100% polyester fabric 35g/sqm, 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 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 is 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 grey?

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


On the Trek 100 grey 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: http://sustainability.decathlon.com/


A tear on a padded jacket can happen when trekking 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 fibres escape.
Don't you 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.

A score for comparing products' environmental impact

The environmental impact of the product is calculated based on its entire life cycle 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, trousers, backpacks, etc).
Decathlon is committed to displaying this environmental information.
More information: http://sustainability.decathlon.com/


2 years


XS : 0.264 kg
S : 0.278 kg
M : 0.33 kg
L : 0.312 kg
XL : 0.43 kg
2XL : 0.352 kg

Product concept & technology

Product Composition

Main fabric 100% Polyamide Main lining 100% Polyamide Padding 100% Polyester


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

Maintenance advice

Machine wash - 30° max - normal

Do not bleach

Tumble dry - low heat

Do not iron

Do not dry-clean

Customer reviews


Environmental Impact

The carbon footprint of this product is:
11.26 kg CO2e
1 kg of CO2e represents 5km in a petrol car (according to the Base Carbone© of ADEME)
What's the carbon footprint ? We evaluate the environmental impact of all our products. At all stages of their life cycle: from the extraction of the raw material, passing through transport to the plant which transforms them, the transformation, the manufacture, the transport of the finished product, until its use and end of life. Find out more
The environmental note of this product is: B
What is the environmental note? Overall environmental score for this product in comparison to others in the same category. It is calculated based on its impact on the environment (air and water emissions, greenhouse gas emissions, depletion of natural resources) at each stage of its life cycle, according to a system managed by ADEME. Find out more