Product Colors and Sizes
- Black Friday product
- New Deal product
- Cyber Monday product
- Sale 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
- Sale product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
Forclaz Trek 100, Down Packable Puffer Backpacking Vest, Men's
This slim-fitting and warm backpacking sleeveless jacket is the most eco-designed product in the range!
Free shipping over $35
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Warmth
Polyester fill with good fill power (4.4 oz/m²). Drawstring at jacket base
Ecodesign
Fill made of 70% recycled polyester. Grey lining with low CO2 impact
Compact design
Easily folds away into its left-hand pocket using a zipper with double pull
Durability
> 20,000 cycles in the Martindale test. 20 denier thread. Polyamide canvas
Water repellent
Surface-treated outer fabric (PFC free) to prevent water from getting in
Weight
This sleeveless jacket weighs approximately 8.6 oz in size M
Easy to maintain
Synthetic fabric and insulation that can be machine washed at 86°F.
Product Customer Reviews

Top
Great value, warm gillet
Thank you for your kind words Martin.
We are glad to see that you are happy with your recent purchase.
Have a great day!
Emily
Sports Advisor (Customer Service)
Decathlon Wednesbury
Decathlon UK Limited. Company number: 03140144. VAT number: GB679262296.
Registered office: 9 Maritime Street, London, SE16 7FU.
Got the large size as medium was too small. Good value for money and appears well enough made and eco friendly.
A great purchase. Light weight, but warm.
Really good jacket. Great fit.
Very comfortable.
Excellent bit of kit , fits well , warm
Great product for wearing under my waterproof jacket on wet n cold riding days on my mountain bike . Fit is snug without being tight , kept me warm without getting too hot
Even better and warmer than I expected and its so light weight.
Díky sbalitelnosti do malého balíčku dobrá nouzovka při ochlazení. Celkově velmi úzká - jen pro hubené postavy.
Doporučuji.
OK
Sie hält wunderbar warm und ist leicht. Hält sehr gut den Wind ab, auch im Halsbereich benötigt man keinen Schal. Die beiden Reißverschlusstaschen sind sehr praktisch, vor allem weil die Weste in einer Tasche zu verstauen ist. Das ergibt ein handliches Reisekissen. Diese Weste ist ein unverzichtbarer Reisebegleiter geworden.
Ist schön eng geschnitten, gut unter anderen Jacken zu tragen
Wunderbar
Vielen Dank für deine Bewertung
mit sportlichen Grüßen
Christian
Team DECATHLON
Size Guide

Additional Product Information
Composition
Main fabric
- 100% Polyamide
Main lining
- 100% Polyamide
Padding
- 100% Polyester cationic
Do you want to know more about the fill used?
We use 100% polyester fill (70% recycled) at 4.4 oz/m². The fill is made from silicon-coated spiral fibers that make it highly compressible and highly durable. Despite its low thickness and light weight, the air trapped inside gives it high insulation properties. It retains its warmth even when wet.
Do you know why the inner lining of your padded jacket is gray?
Because the fabric we use reduces CO2 emissions by 40%. The fabric used is innovative because it mixes a self-dyed black thread and an undyed thread. Compared to a conventional dyeing process, this process reduces by: • 66% fine particle emissions (PM2.5) • 74% Eutrophication of fresh water • 68% eutrophication of sea water
Additional sustainable development information
On the black Trek 100 sleeveless jacket model, the outer fabric uses a clean dyeing process known as dope dyeing (the thread is dyed before the yarn is woven) reducing CO2 emissions by 36%. More information: http://sustainability.decathlon.com/
Durable materials
This polyamide fabric that uses 20 denier thread can withstand 20,000 abrasion cycles. Martindale test, 12947-2 standard. Outer: 100% polyamide fabric 1.4 oz/sqm, 20 denier Lining: 100% polyester fabric 1.2 oz/sqm, mix of 15 to 20 denier threads
Water-repellent properties of the 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 soaking up water and keeps it lightweight and warm. The fabric is made water-repellent by treating its outer surface; however, this property may deteriorate with use. We recommend that you renew after each wash.
Pfc-free water-repellent treatment
On the Trek 100 sleeveless jacket, the water-repellent treatment doesn't contain PFCs (perfluorocarbons), i.e. it is PFC-Free. PFCs are used to make a fabric water-repellent, but they are very toxic for the environment and people. By replacing the PFCs with other technologies that we are developing to enable the same level of performance, we are helping to reduce this environmental impact.
How to restore the water-repellent properties?
Follow the guide! https://www.quechua.co.uk/advice/how-do-you-restore-water-repellent-properties-your-jacket-a_86426?_ga=2.20443262.771255362.1590130581-1578554464.1590130581 We recommend that you use the dip-coating care product to restore the water-repellent properties https://www.decathlon.fr/eco-wash-in-proof-250-ml-id_8408883.html
Features
Inside flap under the zipper that protects from the wind. Elasticated cuffs, Soft fabric flap at the top of the collar to protect the chin. Tightening with an elastic cord and toggle at the hem.
A score for comparing products' environmental impact
The environmental impact of the product is calculated based on its entire lifecycle and using different indicators. A general score from A to E is provided to help you easily identify the most eco-friendly products by comparing products of the same type (T-shirts, pants, backpacks, etc). Decathlon is committed to displaying this environmental information. More information: http://sustainability.decathlon.com/
Origin
Imported
Storage instructions
In order to preserve all the padding's fill power, store your padded jacket on a hanger rather than stuffing it in its storage bag!
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

Forclaz Trek 100, Down Packable Puffer Backpacking Vest, Men's
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.
