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Men's Mountain Trekking Down Jacket - TREK 100 -5°C Navy

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Sale price: Dhs. 299.00 Regular price:
Model: 8397296

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A photo of the Men's Mountain Trekking Down Jacket - TREK 100 -5°C Navy in use

Men's Mountain Trekking Down Jacket - TREK 100 -5°C Navy : This RDS-certified down and feather jacket keeps you warm on bivouac between +5° and -5°C.

Warm and lightweight, it is the most compressible of our down jackets and takes up less space in your backpack so you can travel light!


Comfortable between 5°C and -5°C. RDS ethical down with a fill power of 800 CUIN

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


This down jacket weighs approximately 290 g in size L.Fabric 35 g/m2; 15 Denier

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Product Reviews

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2826 reviews

Men's Mountain Trekking Down Jacket - TREK 100 -5°C Navy
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Warm camping jacket

Bought to keep me warm whilst wild camping. Warm with hood and folds down into left pocket.

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It's really good at keeping me warm and packs down small but I am a little concerned at how long it will last on rough walks

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Smaller than expected

Jacket is quite short for a medium. Had to reorder a Large

Top quality

Very happy with my down jacket

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Good value

Great value lightweight down jacked easily packed in day bag without the hassle of extra weight.

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Spot on

These are so highly recommended on review sites and YouTube. Great for the outdoors and a must for any body heading out outdoors. Super toasty and warm and great quality.

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Good fit and great colour

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Down but not out!

I was after a lightweight down jacket for mountain biking and this fits the bill perfectly. Sizing is a bit on the small side, so go for the next size up for a better fit. Sleeve length is great and, if you don’t need to wear the hood up, you can roll it down for a neck buff.

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Good jacket

Light, comfortable good value for money

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Excellent jacket

Bought this jacket as a friend recommended it. For the money this jacket is excellent value it’s really thin and light so can easily be put in a bag but it is also so warm. I have a north face quilted jacked that cost £250 and this jacket is just as warm and a 1/5 of the price

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Absolute Garbage!

This is not a warm jacket. You will be cold!

Excellent value - needs drawstring for hood.

Just took this for a test walk in a gale in Shetland. Excellent performance. Certainly seems windproof. Just needs a drawstring to cinch down the hood opening.

Great product - wish it were available

I love these, but the sizing is problematical - I’m usually an XL but this fitted like a tight glove and so, I had to return this and another I bought for my partner for the same reason. As all other sizes were out of stock I asked for a refund. It was rather irritating that I couldn’t get one and compounded by the fact that I had to pay postage for them! I’m looking forward to the stores being open again and left with the feeling Decathlon hasn’t got its act together online.

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I like it

Excellent Jacket for the price. Just needs cinchable hood to get 5 stars

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Great Jacket. Order a size up.

Bought to replace my old Quechua one that I've had for 4 years. As I did previously, I ordered the next size up and it fits well. Elasticated cuffs and a draw cord at the waist are good improvements on the old design. Great value.

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Additional Product informations



  • 10% Grey Duck Feather
  • 90% Grey Duck Down

Main fabric

  • 100% Polyamide

Main lining

  • 100% Polyamide

Padding - Inner fabric

  • 100% Polyester

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.

The advantages of a duck down and feather filling

The filling power of down has 3 advantages for mountain sports:- Thermal insulation thanks to the air trapped in the down and feathers- Ultra low weight: down is lighter than synthetic wadding while offering the same degree of warmth. This saves even more weight in your backpack- Ultra-compressible

How to measure the fill power of a down and feather wadding?

The fill power is a measure of the down's thermal insulation capacity and its potential to "trap" air. It is expressed in CUIN (cubic inches).So, down with a higher fill power (higher CUIN number) will occupy more space, trap more air and provide greater thermal insulation.For this down jacket with its 85% down/15% feathers filling, the fill power is guaranteed to be 800 CUIN or more (European standard).

What is rds certification?

RDS or “Responsible Down Standard” is a worldwide certification issued by an independent organisation to volunteer brands.This standard enables us to guarantee the origin of the feathers in accordance with our commitment to use responsible materials. Our suppliers commit to using only feathers from geese and ducks raised for their meat and slaughtered before down and feathers are collected.To find out more:

Weight of the filling

XS: 70 gS: 76 gM: 81 gL: 87 gXL: 94 g2XL: 100 g3XL: 112 g

How to care for a down jacket?

The down jacket can be worn throughout the winter and will certainly need to be washed. Follow our guidance by copying the link below: summary:1/ machine wash, 30°, with 2 or 3 tennis balls. Gentle spin cycle.2/ tumble dry with 2 or 3 tennis balls, and repeat 2 or 3 times until it is completely dry.

How to repair your fleece?

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 feathers 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.

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 material of this down jacket is water-repellent; we recommend wearing a waterproof jacket over it in the event of prolonged exposure to rain.The fabric is made water-repellent by treating its outer surface, however this property may deteriorate with use.We recommend that you restore it after each wash.

How do i reactivate the waterproofing properties?

After washing your padded jacket, we recommend that you use a water-repellent reactivator spray to preserve the hydrophobic properties of the outer fabric restores the water-repellent properties of the fabric and optimises the performance of your garment throughout its lifetime.

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. For more info:

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