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
Forclaz Men's MT100 Hooded Down Puffer Jacket
Warm and light, it is also the most compressible of our down jackets. It allows you to save space in your backpacking backpack for lighter adventures!
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:
- How to choose the right size: it all depends on layers ! With only 1 layer under, we recommend 1 size up. If worn with 2 or more layers under it, 2 sizes up will be better. Refer to the size chart for more details
- This light down jacket has been designed for backpacking, yet offers a great design making it perfect for everyday use in cold and mild weather.
- Warmth: From 23°F and warmer, this puffer jacket will keep you comfortably warm thanks to its 800-fill-power insulation made with Responsible Down Standard certified down.
- Light and compact: the MT100 jacket is packable and weighs approximately 10.5 oz in size L
- Water-Resistant, not waterproof: This jacket will keep you dry for a good amount of time under light rain thanks to a water-repellent fabric.
- Notice: The black color option for this jacket has been discontinued, and we will not be restocking it. Please explore other available colors.
Product Videos
Product Features
Warmth
Comfortable in temp. from 41°F to 23°F. Down with a fill power of 800 CUIN.
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
Abrasion resistant
Outer fabric: 100% polyamide, 35 g/sqm. 15 denier
Pockets
2 zipped hand pockets
Weight
This padded jacket weighs approximately 11.3 oz (320 g) in size L
Product Lifestyle Image Gallery
Image Gallery
Questions & Answers
Look for product information, frequently asked questions, opinions...
Question:
What is the actual weight of the jacket for size medium? Not the fill weight, the total weight.
Answer:
This down jkt weighs approximately 10.2 oz in size MFabric 1.2 oz/m²; 15 denier
Question:
I see the zipper pull is on the left for this men's MT100. is this correct? in USA, it would be on the right.
Answer:
Thank you for sharing this feedback. Our men's down jackets are designed for global markets and for the moment have zipper pulls on the left.
Question:
What is the torso length and the sleeve length for 2XL and 3XL? Thank you.
Answer:
Sleeve length 2XL-30.7" 3XL-31.1" Torso 2XL-53.6" 3XL-57.6"
Question:
Is this MT100 a rebrand of the old Trek 100 down jacket? If so, do thye share all the same specs?
Answer:
Would you please explain which product you are referring to in detail? The MT100 has been the same re-newed one for a few years now.
Question:
For the Men Xsmall and Small, what is the sleeve size?
Answer:
If you are considering to layer for cold temperatures, we would recommend a size M for you.
Question:
what is the sleeve length for men xsmall and small? Forclaz Men's MT100 Hooded Down Puffer Jacket
Answer:
The sleeve sizes for Men are below: - Small: 28'' - Xsmall: 27.5''
Question:
I am 5’7 (170cm) and 136lb. Chest is 36 inches. Which size would you recommend if warn as an everyday jacket with 1-2 layers on? Which size would you recommend if worn for winter backpacking with extra layers underneath? Thank you!
Answer:
The sleeve sizes for Men are below: - Small: 28'' - Xsmall: 27.5''
Question:
How many grams of 800 Fill down does it have?
Answer:
It varies from size to size. XS: 2.4 oz. S: 2.7 oz. M: 2.8 oz. L: 3 oz. XL: 3.3 oz. 2XL: 3.5 oz. 3XL: 3.9 oz.
Question:
I am 5’7 (170cm) and 136lb. Chest is 36 inches. Which size would you recommend if warn as an everyday jacket with 1-2 layers on? Which size would you recommend if worn for winter backpacking with extra layers underneath? Thank you!
Answer:
We would recommend taking a ''S'' size for everyday use. For extra layers, you could be more comfortable with a ''M''.
Question:
Why is the zipper on the wrong side of the jacket?
Answer:
Our men's down jackets are designed for global markets and for the moment have zipper pulls on the left.
Question:
Can I purchase a Forclaz Men's MT100 Hooded Down Puffer Jacket without the hood? Thanks, Bill
Answer:
Yes, we offer non-hooded versions of this jacket. We have two options to recommend for you: First: https://www.decathlon.com/products/mens-mountain-trekking-down-jacket-mt500-10-degrees-celcius-12077?adept-product=mens-mountain-trekking-down-jacket-mt500-10-degrees-celcius-12077&variant=31481446400062&adept_product_id=mens-mountain-trekking-down-jacket-mt500-10-degrees-celcius-12077&source=search. Second: https://www.decathlon.com/products/forclaz-mens-mountain-backpacking-down-jacket-mt100-41f-335580?
Question:
What is the sleeve length on the large MT 100 jacket? Thanks.
Answer:
It is 28.9'' for the L size.
Question:
What are the sleeve lengths on 2Xl and 3Xl versions of this jacket?
Answer:
For 2XL size, it is 30.7''. For 3XL size, it is 31.1''. ''.
Question:
Where is it made in?
Answer:
This particular color is made in China.
Question:
what is the jacket length of size S?
Answer:
The lenght of the jacket excluding the hood for size Small is: 27.7''
Question:
How do you wash this jacket?
Answer:
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.Summary: 1/Machine wash with a detergent suitable for down or technical garments, at 86°, with 2 or 3 tennis balls. Gentle spin cycle. 2/ tumble dry with 2 or 3 tennis balls, and repeat 2 or 3 times until it is completely dry.
Question:
What is the approximate weight for 2xl
Answer:
It weighs about 13.05 oz.
Question:
Does the hood have a cord to tighten it ?
Answer:
Our 100 level down jackets do not have a cord on the hood.
Question:
Did anyone face problem with quality?? After 2 wash only, it lost the integrity and not able to hold at even 50 degrees. Not only that, even zipper has come out. When i write the review, they never published it
Answer:
We are sorry to hear that you are noting to have experienced some troubles with your jacket. Please feel free to contact our customer support team at customer.service@decathlon.com so we may be able to get more details on the issue at play. Thank you.
Question:
Is the jacket windproof?
Answer:
This padded jacket, worn as a 3rd layer, has been certified for an active comfort temperature of 23° during a standardised test in a thermal chamber. The model is wearing a synthetic long-sleeved T-shirt and a light fleece underneath. It works with a simulated 3.1 mph wind. We have also tested this model in static mode. The comfort temperature is 41°F in this case.
Question:
What is the oxygen level and turbidity of the down used for this jacket?
Answer:
Dear valued customer, - Thank you for reaching out and showing interest in our product! We appreciate your curiosity and attention to detail. - Regarding your inquiry about the oxygen level and turbidity of the down used in our jacket, we want to be transparent and honest. While we understand the importance of technical details, these specific measurements are not typically relevant for the everyday usage of our product. - Our focus is on providing a high-quality and comfortable experience for our customers, ensuring the jacket meets the necessary standards for warmth, durability, and performance. If you have any concerns about the product's features or performance, please feel free to ask, and we'll be more than happy to assist you with information that directly impacts your experience with our jacket. - Thank you for your understanding, and we look forward to serving you. - Best regards,
Question:
Can this jacket be purchased in the 4 and 5X sizes as per the size chart?
Answer:
We regret to inform you that these sizes are currently unavailable. However, we are actively working to expand our options for you in the upcoming seasons.
Question:
I am 5’4 (162cm) and 170lb. Chest is 46 inches. What size would you recommend for winter daily use / backpacking with extra layers underneath? Thank you!
Answer:
I would recoment a size XL. Please go to our Canadian website and play around with the size guide there if you want more information https://www.decathlon.ca/en/p/8858286.
Don't see the answer you're looking for?
Product Customer Reviews
I got it in yellow, it's really light, comfortable and pretty.
Compact, comfortable and durable. Excellent quality/price! I have been wearing them for 2 years both for trekking and for daily travel.
An amazing deal! Initially got it for 1500CZK which is ridiculous for such a high power fill down jacket with low weight and great packability. This has been with me everywhere from Finland's winter countryside to the mountains of Romania and Georgia.
not too warm and therefore very versatile. Perfect for most of the year for people who know how to dress in layers
Great quality product, but waiting to be tested in more intense cold weather. In any case, the piece is very well finished, quality materials and super light. I recommend buying at least one size larger than normal. I wear M and bought a G.
a warm, lightweight jacket, perfect for the city and short walks
Light and warm and very good for the price
Great. It's long-lasting and covers a lot. I've had it for a long time, and it hasn't deteriorated.
Very pleasant surprise, I went through the entire winter of 2024/2025 in it, light, compact although it lacks a rubber band on the hood and a pocket on the chest as in the higher version. It will be taken for summer mountain trekking under a tent as an emergency warming layer.
Good quality. The ability to compress in a pocket is very helpful.
A great jacket, tested in the mountains and on the Eagle's Nest Trail.
I recommend it, comfortable and warm
looks amazing and very comfortable to wear in winter
Very compact warm jacket - tested in October in the Tatras. The look is also a plus, I recommend :)
Easily one of the most recommended piece of gear from decathlon. Keeps me warm hiking up Mt Kinabalu.
Size Guide
Additional Product Information
Composition
Filling: 90.0% Grey Duck Down, 10.0% Grey Duck Feather ; Main fabric: 100.0% Polyamide ; Main lining: 100.0% Polyamide ; Padding - Inner fabric: 100.0% Polyester
How warm is this padded jacket?
This down jacket, worn as a 3rd layer, has been certified for an active comfort temperature of 23°F , during a standardized test in a thermal chamber. The model is wearing a synthetic long-sleeved T-shirt and a light fleece underneath. It works with a simulated 5 km/h wind. We have also tested this model in static mode. The comfort temperature is 41°C in this case.
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 fts thermal insulation capacity and its potential to InchtrapInch 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. This puffer jacket, filled with 90% down and 10% feathers, has a guaranteed fill power of 800 CUIN (international standard) or over.
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 care for a down jacket?
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.Summary: 1/Machine wash with a detergent suitable for down or technical garments, at 30°C, with 2 or 3 tennis balls. Gentle spin cycle. 2/ tumble dry with 2 or 3 tennis balls, and repeat 2 or 3 times until it is completely dry.
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 optimizes its performance throughout the lifespan of your garment.
A snag? this is how to repair your down jacket
A tear on a padded jacket can happen when backpacking! The good news is that it can be repaired with a repair patch to prevent the tear from getting bigger or feathers from escaping. You can purchase repair patches on our website!
Weight of the filling
XS: 70 g S: 76 gM: 81gL: 87 gXL: 94 g2XL: 100 g3XL: 112g
Product testing
10 backpackers (5 men and 5 women), independent of Forclaz, tested this down jacket during a week-long hike in November 2016, in the Mont Blanc mountain range. The feedback given to us after this test let us validate this down jacket for backpacking in the mountains.
Storage instructions
Store on a hanger in a dry place. Do not store folded in its pouch.
Origin
Imported
Law label information
Color Black, click here to see the product label
Color Navy, click here to see the product label
Color Kaki, click here to see the product label
Color Orange, click here to see the product label
Forclaz Men's MT100 Hooded Down Puffer Jacket
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.
