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Forclaz MT900 Symbium Backpacking 50 + 10 L Backpack

Sale price: $169.00 Regular price:

A backpack that is durable and lightweight with a carry system that is comfortable for long expedition-type hikes lasting several weeks. The Symbium concept: The most comfortable in the range.

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Sale price: $169.00 Regular price:

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Model: 8676376

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Product Features

Forclaz MT900 Symbium Backpacking 50 + 10 L Backpack | We have developed this robust 50 L bag (+ 10 L extra) for men setting off independently on trips for several days.

A backpack that is durable and lightweight with a carry system that is comfortable for long expedition-type hikes lasting several weeks. The Symbium concept: The most comfortable in the range.

A photo of the Forclaz MT900 Symbium Backpacking 50 + 10 L Backpack in use

Carrying comfort

Adjustable back and shoulder straps

Multiple compartments

Wide front access, 10 pockets


2 bottle holders, pole holders, rain cover, tent holder (straps under the bag)


600 denier durable polyester fabric, reinforced polyamide bag base


Back with aluminum bars to reduce pressure and allow the back to breathe

Easy hydration

Internal compartment for a water bladder (not included)


5.3 lbs. The empty weight indicated is that of our benchmark sample

Product Lifestyle Image Gallery

Image Gallery

Forclaz MT900 Symbium Backpacking 50 + 10 L Backpack,granite green 

Forclaz MT900 Symbium Backpacking 50 + 10 L Backpack,granite green 

Forclaz MT900 Symbium Backpacking 50 + 10 L Backpack,granite green 

Forclaz MT900 Symbium Backpacking 50 + 10 L Backpack,granite green

Product Customer Reviews

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Forclaz MT900 Symbium Backpacking 50 + 10 L Backpack,granite green
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Great backpacking pack

Decathlon have nailed it with this pack. After 2 seperate multi day backpacking hikes I love the way it is designed. The internal layout with multi straps makes it easy to remove your sleeping bag etc without all your clothes collapsing, the pockets are all easy to access even with cinch straps tightened, there are loads of accessory loops for attaching quick grab items to the outside and I really love the bottle holsters. What a great feature these are for sweaty treks. 50+10 is a perfect size for summer backpacking where you don’t need to be carrying bulky sleeping bags and clothes. Strongly recommend this pack.


Very good for multi days trekking

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It was much better than expected

I was not aware it was a Mens trekking pack! Once adjusted for my height 1.65 mt , it was very very comfortable. Was easy to use , many compartments and so easy to access.

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Very product with some room for improvement

As usual with Decathlon, the product is at least as good as name brand products but significantly cheaper. It's a good size for solo mutli day hikes with compact kit. The straps and back are comfortable. The front opening to the main compartment is handy, as are the compression straps. I've got no regrets whatsover, especially at this price. However, there's a couple of areas that could be improved for future iterations: The waterproof cover pocket is on the inside of the 'hood' of the rucksack. This a puzzling design choice, as when it rains and you want to use the cover, you have to open your rucksack to get it out. It would be preferable if this was accessed from the outside of the bag. A zipped pocked on the front of the bag would be useful. The side zidded pockets are compessed between the main bag and anything in the elasticated pockets, so aren't much use for snacks etc. The water bottle holder pockets could do with being wider. It was awkward for me to fit the 500 Tritan 1.2 L flask into these. However they work well for other bottles.

Worth every dollar for this pack

I have a number of larger 60+10 / 70+10 backpacks from other leading brands for years and this year for the family camping trip I started to get a smaller one. Although this 50+10 version is the smallest among the collection, but the sturdy body makes the room very usable. The pockets and the water bottle holder are very thoughtful too. First trip loaded including bag weight 24kg and very comfortable and well balanced on uneven paths.


Thank you for supporting Decathlon Hong Kong. Your feedback is appreciated and it can motivate us to strive for outstanding service level and product quality.

We are looking forward to seeing you again.

Thank you again for your support. 

Stay healthy. 


Decathlon Hong Kong Sports Team


Best Value

For the price this backpack is the best, all the features needed for hiking are available, including features that must be in a modern backpack. To get everything in this backpack usually more money is spent. I really like it and will probably use it for a long time

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build quality

Worth it..

Durability And Strength

-The rucksack arrived within one week -features of the product is highly durable, sturdy, -Many of apartments are given for storage , adjustable back , Good for trekking between 7 to 10 days Improvement It is little bit heavy weight

its awesome :too_cool:

it's tooo compact with tough fabric i like it very much

High Durability

I’ve been using this bag from last 2 or 3 years, this Bag never disappointed me. Best quality.

It’s good

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It needs to be lighter,way lighter.The bag on its own is heavy with the metal strip to hold its shape. instead all u needed is a thin light rod like i have for my Wildcraft bag. If u need to be carrying ur sleeping bag,mattress,and clothes and food,it will become tooooo heavy. i dont think i will be using it. though i loved the straps holding the stuff inside.And the shape of the water bottle pocket

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Excellent bag , very comfortable while carrying things .

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Great Bag

Just Go for it.

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The product was expected to be really good and yes the design is excellent however the workmanship on the product is really very poor , with all stitches visible and very poor assembled also the product looks gorgeous from far but when you actually have a closer look the Aluminium reinforcement seems to be bubbled up with lots of dents on portions of it ... ! Also the feel of the material is very good but fades overtime with heat and water stains it up during long trails ...!!! Also damb feeling was felt on the inside of baggae when the product was opened up and no desiccant was used to preserve the product...!! Totally unexpected from Decatlon Brands like Forclaz ..!


Thank you for taking the time to give your valuable review. We are sorry that you were not satisfied with the product. Please visit your nearest Decathlon store to get the product physically checked so that we can provide you with the best possible solution.


Product Trainer and Passionate Backpacker

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Additional Product Information


Main fabric: 100.0% Polyester ; Lining: 100.0% Polyester ; Yoke: 100.0% Polyamide ; Webbing: 100.0% Polypropylene ; Bag cover: 100.0% Polyester ; Coating: 100.0% Polyurethane


Height: 27.2”, Width: 16.9”, Depth: 13.8”

Symbium technology

The comfort of a backpack lies in its good balance when walking. Symbium technology consists of a jointed waistband that allows the backpack to adapt to the backpacker's movements when walking.The Symbium system means no more balancing effects that tire out the backpacker.


Extendable volume: 50 L + 10 L (3051.2 in³ + 610.2 in³) extension via the bag’s top flap with adjustable height. The volume of each backpack is measured using a standardized method. we use small balls to fill the main compartment as well as each pocket. The balls are then emptied into a graduated container in order to determine the equivalent volume in liters, with a margin of error of just a few %.

Dying process

Textile dyeing requires a lot of water but also produces waste water from the dye baths. To reduce this environmental impact, we have opted for mass pigmentation called ”dope dye” integrating the color pigments from the initial thread manufacture. This process reduces this backpack’s CO2 emissions by 20% compared to the previous model.

How to pack a backpack

Put your bedding at the bottom. Put heavy gear (tent, camp stove, food) near your back. Store your clothing around it. A groundsheet or tent can be placed under the flap or under the bag if there isn't room inside. Keep your waterproof jacket and fleece at hand. Place small items for daily use (sunblock, map, glasses, etc.) in the pockets. The water bladder can be placed in the compartment provided down the back.

Why are our rain covers gray when some backpackers want them to be brightly colored?

The gray color is neutral, so it uses less dye. We also use a “bi-ton” dyeing process where only 1 thread in every 2 is dyed. This dyed yarn is also made from a bulk dyeing process which incorporates the color pigments from the yarn manufacturing phase onward. Forclaz is committed to improving the environmental impact of its products through these actions.

Complementary accessories

Compatible with 2 x 7 L 1/2-moon storage covers.check out our storage accessories, repair buckles, or hanging straps. check out our accessories

Product testing

All our backpacks undergo field tests by users who are representative of our target market under similar conditions to those you will encounter. To test, assess, and validate products, our mission test connects the product manager responsible for the product design with individuals independent to Decathlon. This backpack was tested by backpackers for 5 weeks in the Canary Islands, the Pyrenees, and the Mont Blanc mountain range.

Storage instructions

Store your bag in a dry and ventilated place, out of the sun.



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Size Guide Visual