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Forclaz Trek 100, Down Packable Puffer Hiking Vest, Men's

Sale price: $59.99 Regular price:

The most compact sleeveless jacket which is warm and lightweight to boot!

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Sale price: $59.99 Regular price:

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Model: 8397299

Product Features

A photo of the Forclaz Trek 100, Down Packable Puffer Hiking Vest, Men's in use

Forclaz Trek 100, Down Packable Puffer Hiking Vest, Men's | Our team of mountain backpacking enthusiasts designed this feather and down sleeveless gilet for backpacking comfortably in cool weather

The most compact sleeveless jacket which is warm and lightweight to boot!


Down with a fill power of 800 CUIN. Jacket hem tightening. Cuffs.

Compact design

Easily folds away into its left-hand pocket using a zipper with double pull.

Water repellent

Surface-treated outer fabric to prevent water from getting in.


This gilet weighs approximately 7.8 oz in size L. 1.2 oz/sqm fabric; 15 Denier.

Product Customer Reviews

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1003 Reviews
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Forclaz Trek 100, Down Packable Puffer Hiking Vest, Men's,midnight blue
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Great Vest

Very warm and very light. Packs down to nothing to put in my golf bag. It's much better than expected. You'll definitely need to go up a size.

Very warm

Great price/Great product

Great value and quality except for zipper

Shell and down are great quality. The zipper works after you get it started. I have had a difficult time getting the zipper started.


Warm and light

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Hello Manny,


Thank you for taking the time to write to us about your product experience. We truly appreciate your feedback.


We would really appreciate it if you could also drop us a google review, it will help others find out about our store easily: 


Wishing you a fantastic day :)

Thanks & Regards,

Decathlon Brampton Team

Frick'n Wicked!

Are you kidding me? Stupidly light weight, warmth of down, wind resistant...all for 60 bucks? Mic drop. P.S. My new best friend for dog walking and cross-country skiing on those cold winter days in Ottawa/Gatineau :)

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Nice and comfy down vest and quality


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Very slim fit - Size Up

I have been on the lookout for a reasonably priced down gilet and eventually decided on this forclaz gilet. In the short time i wore it, i could feel the warmth from wearing it but i have had to return as it is just too slim fitting. I ordered a medium, my usual size. I have a 38 inch chest and 32 inch waist but found it just an inch or so too tight and any kind of movement caused it to bunch up around my upper chest. Not a good look. I'm currently deciding wether to size up or look elsewhere as i also found the two pockets a little on the small side and the zip just didnt feel right. I did like the price point, style and of course warmth so i would advise anyone buying this gilet to purchase a size up unless you are exceptionally slim.

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Perfect for all day wear

So light and comfortable that hardly know it is on. The down filling adds that extra layer to keep warm. I’m normally a medium but this gilet is a very close fit so I went for large and it’s fine. Cannot comment on water repellency as I wear it under a jacket.

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very good quality

This is the best gillet I've had, really nice to wear, very light but warm I'm usually a size xl but ordered xxl and fits perfect you will not find a better one for the price or double the price it's a no brainer

Good value gillet

This is the cheapest gillet I have - yet it’s warm, is light and packs down really small into my rucksack. It’s not got great water reliance but it withstands a light shower. Great value for money.

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Down Jacket

Very good all round can be used for work, casual dress or mountains.

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Brilliant light body warmer.

Really light weight item. Very warm over a fleece mid layer. Useful zipped pockets take a big wallet and XL sized phone with ease. Folds down to a tiny pack size when the weather warms up.

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Excellent quality for the price

Bought size medium and size large for my husband, he was a little disappointed that the large was the better fit; but to be fair he is probably somewhere between the two sizes. This is similar quality to another lightweight gilet I looked at which was double the price. It’s been worn almost every day since Christmas so a great success. I was able to return the other size by post even though I bought in store, very quick and easy process once I’d emailed customer services.

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Exactly what I was looking for

Nice puffer vest to layering in this cold weather

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Unbelievably good

I would not usually waste time providing a review but feel compelled to share that this garment is excellent in quality and fit so represents unbelievable value. You can buy this and the jacket version for less than what you would pay for one down jacket alone from the most competitive brands yet it is 100 per cent comparable to them. Also impressive is that it is Responsible Down Certified. Extremely chuffed with it and want to wear it all the time. Btw, I am a slim 5"10 with a 30 inch waist and medium sizes as snugly as if it were fitted (so if you're prone to adding a few pounds over winter you may wish to size up).

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Size Guide

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Additional Product Information



  • 10% Grey duck feather
  • 90% Grey duck down

Main lining

  • 100% Polyamide

Main fabric

  • 100% Polyamide

Padding - Inner fabric

  • 100% Polyester cationic

Feather origin

Thanks to our traceability system, we can guarantee the origin of the feathers, in compliance with our commitment to use responsibly sourced materials. Our suppliers are committed to using only feathers that come from ducks that are bred for their meat and are plucked after slaughtering.

Fill power of the down/feather filling

This 85% down / 15% feather down sleeveless jacket has a guaranteed fill power of 800 CUIN (European standard). The fill power is a measure of the down's thermal insulation capacity and its potential to "trap" air. Consequently, the higher the fill power (i.e. the higher the CUIN number), the more space it occupies and the more air it traps thereby delivering more thermal insulation.

Weight of the filling

XS: 2.6 oz S: 2.8 oz M: 3 oz L: 3.2 oz XL: 3.5 oz 2XL: 3.7 oz 3XL: 4 oz

The advantages of a duck down and feather filling

The down's long-lasting fill power gives it 3 important qualities for hiking: - Thermal insulation thanks to the air trapped in the down and feathers - Ultra-lightweight: to provide equal warmth, feathers are lighter than synthetic padding. This saves even more weight in your backpack - Ultra-compressible

Care advice for a gilet filled with down and feathers.

The sleeveless jacket will be worn throughout the winter and will certainly need to be washed. Follow the instructions by clicking the link below: How to wash and dry your down jacket

The advantages of a gilet

A sleeveless jacket keeps the body warm: it protects the chest, neck and lower back from the cold, as these areas are especially sensitive to the cold. Given that there are no sleeves, it is not as heavy in the backpack, even more breathable when making a physical effort and extremely comfortable in use when worn under a jacket. Worn underneath the TREK 100 Down jacket, it can provide 6°C extra warmth when compared to a padded jacket worn without the sleeveless jacket.

In the event of rain

This sleeveless jacket's fabric is water-repellent. It makes drops of water run off the fabric so it takes longer for water to get inside the jacket, giving you time to find shelter. But the gilet is not waterproof. We therefore recommend wearing a waterproof jacket over the gilet in the event of prolonged exposure to rain.

How to reactivate the water-repellent property?

Follow the guide: And use the care product: Wash-in waterproofing product that restores the water-repellent properties It restores the water-repellent properties of the fabric and optimizes the performance of your garment throughout its lifetime.

A score for comparing the products' environmental impact

The product's environmental impact is calculated over its entire lifecycle using different indicators. An overall ABCDE rating is given to help you easily identify products with the best environmental performance by comparing and contrasting products of the same type (T-shirts, pants, backpacks, etc.). Decathlon actively promotes this environmental rating initiative. For more information:



Product testing

All our sleeveless jackets are laboratory tested in a 3 mph wind and worn as a 2nd layer on a thermal mannequin (over a long-sleeved T-shirt). Their level of thermal insulation is measured on a scale of 1 to 5, enabling you to make the choice that best fits your use. Worn underneath the TREK 100 jacket, it can provide 11°F extra warmth when compared to a down jacket worn without gilet.

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.

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