Why use a down jacket?
A vest keeps the body warm. It protects the chest, neck and kidneys, which are particularly sensitive to the cold. Sleeveless, it saves weight in the rucksack, is even more breathable during exertion, and provides excellent comfort on the move when worn under a jacket. Worn under the MT100 Duvet down jacket, it increases thermal comfort by 6°C compared with a down jacket worn without the vest.
The advantages of duck down and feather filling
Down's capacity to expand gives it 3 qualities for mountain sports:
- Thermal insulation thanks to the air trapped in the down and feathers
- Ultra-lightness: for equal warmth, feathers are lighter than synthetic wadding. This saves even more weight in the backpack
- Ultra compressibility
Inflating capacity of down/feather filling
Loft represents the thermal insulation capacity of down by "trapping" a certain volume of air. It is expressed in cuin. So, the more down inflates (+ the number of cuin), the more space it occupies, the more air it traps and therefore the more it insulates.
For this sleeveless down jacket filled with 90% down / 10% feathers, the inflating power is guaranteed to be greater than or equal to 660 CUIN (international standard).
Upholstery weight
S : 119 gr
M : 124 gr
L : 130 gr
XL : 136 gr
XXL : 142 gr
XXXL : 149 gr
How to care for a down and feather down jacket?
Down jackets are worn all winter long and will certainly need to be washed. But the less you wash it, the more it retains its thermal insulation and water repellency.
Our advice:
1/ Machine wash with a detergent for down or technical sportswear, at 30°, with 2 or 3 tennis balls. Spin gently at 800-1000 rpm.
2/ Tumble dry on cotton mode, with 2 or 3 tennis balls, repeat 2 or 3 times until dry.
Got a snag? Here's how to repair your sleeveless down jacket
On a trek, a tear in a sleeveless down jacket can happen! The good news is that you can repair it with a repair patch to prevent the tear from getting bigger or feathers from escaping.
Don't feel comfortable doing the repair yourself? Don't panic! Some Decathlon workshops offer an in-store repair service to mend your sleeveless down jacket using an iron-on patch.
Component water repellency (not to be confused with waterproofing)
A fabric's water repellency is its ability to let water slide off its surface without absorbing it. This means the fabric doesn't become waterlogged, and remains light and warm. The material of this down jacket is water-repellent, but we advise you to wear a waterproof jacket over it for prolonged exposure to the rain.
Water-repellency is obtained by a treatment applied to the outer face of the fabric, but it can be altered with use. We recommend that you reactivate it each time you wash.
How to reactivate water repellency?
After cleaning your sleeveless down jacket, we recommend using a water-repellency reactivator liquid to maintain the hydrophobic properties of the outer fabric. It regenerates the fabric's water repellency and optimizes the performance of your garment throughout its lifetime.
