Product Colors and Sizes
- Black Friday product
- New Deal product
- Cyber Monday product
- Clearance product
- Deal product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
- Black Friday product
- New Deal product
- Cyber Monday product
- Clearance product
- Deal product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
Men's mountain backpacking sleeveless down gilet - MT100
Warm and compressible, this sleeveless down gilet filled with 85% down and 15% 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:
- Weight: 12.5 oz (355 g) in size L
- Pockets: 2 x Zipped Hand Pockets I 1 x Chest Pocket with Zip fastening
- Warmth: Wadding: 85% down / 15% feather. Fill power 660 CUIN. Jacket hem drawcord
- Water repellent: Surface-treated outer fabric to prevent water from getting inside (PFC-free)
- Compact design: Easily packs into its storage bag
Product Videos
Product Features

Warmth
Wadding: 85% down / 15% feather. Fill power 660 CUIN. Jacket hem drawcord
Compact design
Easily packs into its storage bag
Water repellent
Surface-treated outer fabric to prevent water from getting inside (PFC-free)
Freedom of movement
Its sleeveless design and light weight make it very comfortable for walking
Pockets
2 zipped hand pockets. 1 chest pocket with zip fastening
Weight
This gilet weighs approximately 355 g in size L
Questions & Answers
There are no questions
Be the first to post a question
Product Customer Reviews

my son doesn't take it off in winter, daily use without a jacket or with it depending on the temperature
very good product
I am against water repellent chemicals so it suits me as such
Very warm & comfortable. The XL is slightly smaller than normal, but perfect fit over a tee shirt.
very easy maintenance
Very practical with its small bag
Very Warm Under Jacket Parka Winter Waterproof Snow Hiking SH900 -20°C Black Men,,,,,didn't feel the cold
Correct cut and very good size
Great vest
As described
Nice jacket
Excellent
Nice to wear
Cc
Extremely warm
Size Guide

Additional Product Information
Composition
Padding: 85.0% Grey Duck Down, 15.0% Grey Duck Feather ; Lining: 100.0% Polyamide ; Main fabric: 100.0% Polyester
Why wear a down gilet?
A gilet helps to keep the body warm. It protects the chest, neck and kidneys from the cold, as these areas are especially sensitive to chills. It is 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 down 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 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
Inflating power of down/feather filling
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 sleeveless down gilet, with its 85% down/15% feather filling, the fill power is guaranteed to be 660 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.
Weight of the filling
S: 119 gM: 124 gL: 130 gXL: 136 gXXL: 142 gXXXL: 149 g
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.
A snag? here's how to repair your sleeveless padded gilet
A tear on a padded gilet 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 sleeveless padded gilet 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 fabric of this down jacket is water repellent, however, we recommend that you wear a waterproof jacket over it during prolonged exposure to the 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 to restore the water-repellent properties?
Once you have cleaned your padded gilet, 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.
Storage instructions
Store folded in a clean, dry place.Do not store folded in its storage bag.
Origin
Imported
Superior quality. Unbeatable prices.
For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.
Decathlon makes the difference
-
Research and development
delivers high-quality cost-effective products
-
State-of-the-art production processes
minimize manufacturing costs
-
Optimized supply chain
reduces retail prices
-
Minimal retail footprint
lowers overhead and indirect costs

Men's mountain backpacking sleeveless down gilet - MT100
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
Order online for
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.