Men's Mountain Trekking Down Jacket - MT100 -5°C
Save space in your backpack whilst trekking in our most compressible down jacket. Filled with RDS-certified down feathers to keep your warm outdoors, this jacket is the perfect partner for exploring.
ID 8858285
- 2-year warranty
- 365 days to return for members
- warmthComfortable in temp. from 5°C to -5°C. Down with a fill power of 800 CUIN.
- compact designEasily folds away into its left-hand pocket using a zip with double puller
- water repellentSurface-treated outer fabric to prevent water from getting in
- abrasion resistance35 g/sqm outer fabric 15 denier
- How warm is this padded jacket?This down 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 fillingThe filling power of down has 3 advantages for mountain sports: - Thermal insulation thanks to the air trapped in the down and feathers. - Ultra-lightweight: 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. This puffer jacket, filled with 90% down and 10% feathers, has a guaranteed fill power of 800 CUIN (international standard) or over.
- How to care for a down jacket?The down jacket can be worn throughout the winter and will certainly need to be washed. But the less you wash it, the more it will retain its thermal insulation and water repellency. Summary: 1/Machine wash with a detergent suitable for down or technical garments, at 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.
- 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 of this down jacket is water repellent, however, we recommend that you wear a waterproof jacket over it in the rain. The fabric is made water-repellent by treating (PFC-free) its outer surface, however this property may deteriorate with use. We recommend that you restore it after each wash.
- How to restore the 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. This renews the fabric’s water repellent properties and optimises its performance throughout the lifespan of your garment.
- A snag? How to repair your fleeceA tear on a padded jacket can happen when trekking! The good news is that it can be repaired with a repair patch to prevent the tear from getting bigger or feathers from escaping. Don't you feel at ease carrying out this repair yourself? Don't worry! Some Decathlon workshops offer an in-store repair service to mend your padded jacket using a heat-bonded patch.
- Weight of the down and feather fillingXS: 64 g S: 70 g M: 75g L: 81 g XL: 85 g 2XL: 92 g 3XL: 99g
Features
Design benefits
Design details
Specifications
Details
frequency | occasional |
weather conditions | cool weather |
storage | stows in his pocket |
hood | without hood |
zip closed pocket, with pocket | |
waterproof | water repellent |
style | plain |
main material | down |
type of length | at the hips |
condition | new |
windproof | not windproof |
air temperature | - 5°C |
fit | straight |
sleeves length | long sleeves |
sleeve finishing | without finishing |
Composition
Filling: 10.0% Grey Duck Feather, 90.0% Grey Duck Down |
Main fabric: 100.0% Polyamide |
Main lining: 100.0% Polyamide |
Padding - Inner fabric: 100.0% Polyester |
Usage & care
Environmental impact
Carbon footprint

Kg CO2 eq.
8.468Contribution
Raw material | 83% |
Manufacturing | 5% |
Packaging | 2% |
Distribution | 7% |
Use | 3% |
End of life | 0% |
It is calculated by modelling the life cycle of the product following the recommendations of the PEF methodology (Product Environmental Footprint). This carbon footprint is an estimate. It may therefore be slightly overvalued or undervalued.Learn more