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Men's Mountain Trekking Padded Gilet - MT100
Lightweight and compressible, this sleeveless down gilet filled with 90% down and 10% feathers lightens the weight of your trekking bag, while providing good warmth.
Free shipping over $49
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
About this item:
- Warmth: RDS ethical down with a fill power of 800 in³. Jacket hem tightening.
- Compact design: Easily folds away into its left-hand pocket using a zipper with double pull
- Weight: ~ 7.8 oz in size M. 1.2 oz/m² fabric; 15 denier
Product Videos
Product Features

Warmth
RDS ethical down with a fill power of 800 CUIN. Jacket hem drawcord
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. PFC-free
Pockets
2 zipped hand pockets
Abrasion resistant
Outer fabric: 100% polyamide, 35 g/sqm. 15 denier
Weight
This sleeveless jacket weighs approximately 220 g in size L
Questions & Answers
Look for product information, frequently asked questions, opinions...
Question:
Does Decathlon ever stock this vest in the color Black? All my other Decathlon jackets are in black so I don't need a blue one. Thanks
Answer:
We only carry the blue color of this jacket for this season. Next season will start from September 2024. We will be taking your feedback for our next collections' color selections.
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Product Customer Reviews

No comments, just good!
cool
Excellent product, essential for trekking
Perfect for hiking
Very light and comfortable and warm just what you need
After I bought a jacket (an analogous model) I was also tempted to buy a vest, mainly for bikepacking. On the bike, the jacket does not always work, but the vest solves some of the shortcomings - it is more airy, the lack of sleeves means that nothing restricts the movements and range of the arms, and as it does not have a hood, it does not irritate when riding with a helmet. In addition, it packs down to a small size, so it fits perfectly in any, even a very limited bicycle set.
An extra layer for the city, a light and comfortable base layer for the mountains.
Ideal for breaks in hiking or cool evenings in bivouac. Very light. Compacts in its pocket to take up minimal space in the bag.
Excellent
I use this under my -5C jacket on very cold days and nights. Great for maintaining your core temp. The size runs smaller, so go 1 size up unless you want a snug fit.
It is worth having one. I bought it to go on a hot air balloon flight since we were leaving at dawn in an area and it was very light, comfortable and resistant for the winds they were making. It has excellent heat insulation; the way you can do it bag is perfect.
Alright
Good design and good features.
Warm and very light
This down jacket suits me perfectly, it is comfortable to wear, it has a good look and a good fit. It is sufficiently warm and yet very compact. I am very satisfied with my purchase.
Size Guide

Additional Product Information
Composition
Padding: 90.0% Grey Duck Down, 10.0% Grey Duck Feather ; Main lining: 100.0% Polyamide ; Main fabric: 100.0% Polyamide ; Padding - Inner fabric: 100.0% Polyester
Why wear a down gilet?
A gilet helps to keep the body warm. It protects the chest, neck and kidneys as these areas are especially sensitive to chills. It’s sleeveless so it saves weight in your backpack, provides even more breathability during exercise and excellent comfort of movement when worn under a jacket. Worn underneath the MT100 down jacket, it can provide 6°C extra warmth when compared to a padded jacket worn without the gilet.
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-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). Down with a higher fill power (higher CUIN number) will occupy more space, trap more air and provide greater thermal insulation. For this down gilet with its 90% down and 10% feathers filling, the fill power is guaranteed to be 800 CUIN or more (international 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.
How to care for a down and feather gilet?
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.Our advice: 1/Machine wash with a detergent suitable for down or technical garments, at 30°, with 2 or 3 tennis balls. Gentle spin between 800 and 1000 rpm. 2/ - Tumble dry on cotton mode with 2 or 3 tennis balls, repeat 2 or 3 times until 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? here's how you can repair your sleeveless down jacket
A tear on a padded jacket can happen when trekking! The good news is that it can be repaired with a repair patch so the tear doesn’t get any bigger and the feathers escape. Don't you feel at ease carrying out this repair yourself? Don't worry! some in-store Decathlon workshops offer a repair service to mend your padded jacket using a heat-bonded patch.
Weight of the filling
XS: 67.5 gS: 71 gM: 76.5 gL: 82 gXL: 88 g2XL: 94.5 g3XL: 101 g
Product testing
10 trekkers (5 men and 5 women), independent of Forclaz, tested this down jacket during a week-long trek in November 2016, in the Mont Blanc mountain range. The feedback given to us after this test let us validate this down jacket for mountain trekking.
Storage instructions
Store on a hanger in a dry place.Do not store folded in its pouch.
Origin
Imported
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Men's Mountain Trekking Padded Gilet - MT100
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
