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Men's Mountain Backpacking Down Jacket Trek 500

Down with a fill power of 800 CUIN Jacket hem tightening system.

4.4 / 5

Regular price



Men's Mountain Backpacking Down Jacket Trek 500 designed for mountain backpacking over a few days in cool weather.

The most compact mountain backpacking down jacket

Down with a fill power of 800 CUIN Jacket hem tightening system.

Compact design

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


This down jacket weighs approximately 10oz in sizeL 1.2 oz/sqm fabric; 15 denier

Water repellent

Surface-treated outer fabric to prevent water from getting in.

Feather origin

Thanks to our traceability system, we can guarantee the origin of the feathers, which are sourced in accordance with our responsible material commitments. Our suppliers are committed to using only feathers that come from ducks that are bred for their meat and are plucked after slaughtering.

Fill power of the down/feather filling

For this jacket filled with 85% down / 15% feathers, the fill power is guaranteed to be 800 CUIN (European standard) The fill power is the capacity of the down to insulate by "trapping" a certain volume of air. So, the more loft the down has (i.e. the higher the CUIN number), the more space it will occupy and the more air it will trap, thereby providing greater thermal insulation.

Weight of the filling

XS: 2.9 oz S: 3.1 oz M: 3.3 oz L: 3.6 oz XL: 3.8 oz 2XL: 4.1 oz 3XL: 4.4 oz

The advantages of a duck down and feather filling*

The down's long-lasting fill power gives it 3 important qualities for hiking: - Thermal insulation thanks to the air trapped in the down and feathers - Ultra-lightweight: with equal warmth, feather is lighter than synthetic padding. This saves even more weight in your backpack - Ultra-compressible

Care instructions for jackets filled with down and feathers

The down jacket can be worn throughout the winter and will certainly need to be washed. Follow the instructions by clicking the link below: How to wash and dry your down jacket

In the event of rain

The material of this padded jacket is water-repellent. It makes drops of water run off the surface, which delays the time it takes for water to get inside the down jacket, giving you time to get out of the rain. However, we advise you to wear a waterproof jacket over the down jacket in case of prolonged exposure to rain.

A score for comparing products' environmental impact

The product's environmental impact is calculated over its entire lifecycle using different indicators. An overall score from A to E is given to help you easily identify the most environmentally-friendly products by comparing products of the same type (T-shirts, pants, backpacks, etc). Decathlon is committed to displaying the environmental data of its products. For more information:

Product Testing

All our down jackets are laboratory tested with 3 mph wind, worn as a 3rd layer on a thermal mannequin (over a long-sleeved T-shirt and fleece). Their level of thermal insulation is measured on a scale of 1 to 5, enabling you to make the choice that best fits your use.


Padding : 85.0% Grey duck down, Padding : 15.0% Grey duck feather Main fabric : 100.0% Polyamide Main lining : 100.0% Polyamide Padding - Inner fabric : 100.0% Polyester cationic



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