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

Forclaz Men's MT900 SYMBIUM 70+10 L Backpacking Pack

Sale price: $209.00 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.

Color: Select a color
Size: Select a size
Sale price: $209.00 Regular price:

Free shipping over $49

See our return rules

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

About this item:

  • This backpack is made for multiple days hiking or trekking in autonomy. You can carry everything you need to camp, drink and eat on your back with comfort.
  • The MT900 SYMBIUM weighs 6 lbs and can contain a total volume of 70 liters which we recommend for a trip over 2 weeks long. The top of the bag is adjustable and can hold an extra 10 liters of volume.
  • This backpack has plenty of features if you are looking for a comfortable technical option and complete autonomy at a fair price: SYMBIUM comfort, rain cover, 2 water bottle holders, hiking poles holder, a tent holder, 10 pockets and a compartment for a water bladder for easy hydration.
  • The SYMBIUM technology brings the best comfort when carrying your backback as the belt follows the body movements to avoid any loss of balance while hiking.
  • This is a men's backpack: This bag has been conceived for a masculine morphology (torso and hips). We recommend to stick to your gender when you choose a bag for comfort purposes when carrying it on your back.
  • 10-year warranty: the fabric of the bag is ultra resistant and Decathlon is proud to offer this warranty for any defect that could appear in the next 10 years.
Model: 8676379

Product Videos

Product Features

Forclaz Men's MT900 SYMBIUM 70+10 L Backpacking Pack | We developed this sturdy and generously sized 70 L bag (+ 10 L extendable) for traveling autonomously 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 Men's MT900 SYMBIUM 70+10 L Backpacking Pack in use

Carrying comfort

Adjustable back and shoulder straps.

Multiple compartments

Wide front access. 10 pockets + water bladder.


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


Durable 600 denier polyester fabric. Polyamide-reinforced bag bottom.


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

Easy hydration

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


6 lbs. The weight indicated is that of our benchmark sample.

Product Lifestyle Image Gallery

Image Gallery

Forclaz Men's MT900 SYMBIUM 70+10 L Backpacking Pack, carbon gray Image 1 of 5 

Forclaz Men's MT900 SYMBIUM 70+10 L Backpacking Pack, carbon gray Image 2 of 5 

Forclaz Men's MT900 SYMBIUM 70+10 L Backpacking Pack, carbon gray Image 3 of 5 

Forclaz Men's MT900 SYMBIUM 70+10 L Backpacking Pack, carbon gray Image 4 of 5 

Forclaz Men's MT900 SYMBIUM 70+10 L Backpacking Pack, carbon gray Image 5 of 5

Questions & Answers

Product Customer Reviews

Skip to reviews
492 Reviews
Write a Review 
Forclaz Men's MT900 SYMBIUM 70+10 L Backpacking Pack, carbon gray Image 5 of 5
Filtered by reviews Loading reviews…
Solid and Big

First of all, I would like to thank you for the product, which reached me in a very short time, even though I was far away. As it arrived, I had experience using it while camping. The product is actually better in every sense than shown in the images. If you are camping all the time and have a lot of stuff, I suggest you buy it without thinking. Because it definitely meets these. A sturdy and comfortable product. Being large may be a disadvantage, so be careful if you need a normal bag. The only downside is the inner water bottle, you need to buy it separately.

Very useful

Good quality and very useful

First vacation with just a backpack

I used the backpack for vacation instead of a suitcase as we often changed accommodation and waded on the bus in Portugal. This means that most of the time I had to go from the central bus station to the accommodation with a backpack on my back. Even a little further. Once I had adjusted the backpack correctly, it was very comfortable to wear. I was also able to stow everything away without any problems. (Luggage for 3 weeks). However, I will still get bags for luggage organization. All in all, the backpack exceeded all of my requirements.

It's made for rough and tough hikes and traveling but very different when you mount on bus and moving in crowded place .try to buy littel bit small in size although it is a great investment.😊

icon-circle-checkmark verified purchase
Large and comfortable

Overall, I recommend the backpack, but it lacks some pockets and compartments, everything is basically in one compartment. I was used to a backpack with separate pockets and I didn't think that their absence would bother me (subjective feeling). It took me quite a long time to adjust the carrying system (the adjustments themselves were quite simple and easy to do, even on the trail). The backpack is really big and roomy.

Very good trekking backpack

I was looking for a long time for a trekking backpack that would replace the old one after 15 years. Even though I often shop at Decathlon, I didn't pay attention to these backpacks - only a friend showed them to me during a two-day trekking trip. I bought the backpack and I am satisfied. Very nice carrying system. Lots of compartments. The main compartment is very spacious and the suitcase-like opening system is a brilliant idea that makes it easier to pack the backpack efficiently. Additionally, there are many amenities such as dedicated places to hold drinks and plenty of straps to attach your equipment. The only drawback is the rather short side compression straps. Somehow I can't convince myself to attach a sleeping pad or a tent to my backpack and I'll probably come up with something - it's worth improving. Everything else is very good.

icon-circle-checkmark verified purchase
Poor seams

I have an older version of this bag (symbium access 70+10). It's from 2018 but I had never used it until this summer. After 6 weeks of use, the seams in the back started to unravel on one side by about fifteen centimeters, which means that the bag risks becoming unusable and that I would no longer take the risk of going on a trek with it. ! I don't know if this lack of solidity has been corrected on the new models, but in any case the old Symbium 70+10 is not reliable.

Bag is very comfortable and have a lot of space in it.

icon-circle-checkmark verified purchase


icon-circle-checkmark verified purchase
Very pleased

I used the backpack on a 3-day hike in the Retezat Mountains. I walked with the tent on the back, attached to the bottom of the pack. The backpack proved to be very comfortable and balanced. Also, the tarpaulin withstood the short rain that greeted us without problems.

icon-circle-checkmark verified purchase


icon-circle-checkmark verified purchase
trekking bag

great bag for your trek positive point the bag does not make your back sweat


The bag has two water bottles, the large colors are very beautiful. Thanks to its springs that absorb the shock effect, even a weak person like me can carry the bag without much difficulty. Good product.

icon-circle-checkmark verified purchase

This product is worth carrying

icon-circle-checkmark verified purchase
Exactly the backpack as practical as a suitcase

A great backpack! This is absolutely the one I needed for long hikes with bivouac as I can put everything in it and put it on my Tactical 13 v2 hiking cart! It all depends on the terror and I don´t have to carry a second backpack to take everything to very long places! I recommand it !

icon-circle-checkmark verified purchase
Skip to reviews

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: 30.3”, Width: 18.9”, Depth: 15”

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: 70 L + 10 L (4271.7 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 %.

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.

Complementary accessories

Compatible with 2 x 15 L 1/2-moon storage bags.It's important that you are well equipped for your hike to take place in the best conditions. So to complete your equipment and make your MT900 backpack easy to use, check out our storage 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.



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
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual

Please Sign In to Post Your Question

In order to notify you about the answer it is required to Sign In.

Sign In