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Forclaz Men's MT900 Symbium 50+10 L Backpacking Pack

Sale price: $179.00 Regular price:

This backpack combining durability and carrying comfort has undergone 188 laboratory tests and has been tested for over 280 hours in the field. Its SYMBIUM concept is the most comfortable in the range.

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Sale price: $179.00 Regular price:

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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 5.3 lbs and can contain a total volume of 50 liters which we can 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: 8676376

Product Videos

Product Features

Forclaz Men's MT900 Symbium 50+10 L Backpacking Pack | We have developed this strong 50 L bag (+ 10 L extension) for men going trekking for a few days independently.

This backpack combining durability and carrying comfort has undergone 188 laboratory tests and has been tested for over 280 hours in the field. Its SYMBIUM concept is the most comfortable in the range.

A photo of the Forclaz Men's MT900 Symbium 50+10 L Backpacking Pack in use

Carrying comfort

Adjustable back and shoulder straps. SYMBIUM technology

Multiple compartments

Wide front access. 10 pockets. Water bladder


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


600 denier Ripstop polyester fabric. Reinforced polyamide bag base


Back with aluminium bars reducing the pressure and allowing the back to breathe

Easy hydration

Inner water bladder compartment (water bladder not included)


2.4 kg. The empty weight indicated is that of our benchmark sample

Product Lifestyle Image Gallery

Image Gallery

Forclaz Men's MT900 Symbium 50+10 L Backpacking Pack, granite green Image 1 of 5 

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Forclaz Men's MT900 Symbium 50+10 L Backpacking Pack, granite green Image 3 of 5 

Forclaz Men's MT900 Symbium 50+10 L Backpacking Pack, granite green Image 4 of 5 

Forclaz Men's MT900 Symbium 50+10 L Backpacking Pack, granite green Image 5 of 5

Questions & Answers

Product Customer Reviews

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Forclaz Men's MT900 Symbium 50+10 L Backpacking Pack, granite green Image 5 of 5
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Sturdy and durable product.

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Nehéz, kényelmetlen, megbizhatlan

Végigjártam thus the Camino Frances-t. Kényelmetlen, pár nap után a szíjak magutól menet menet memetnek emiatt schösszedtem egy vall sálejt. Az anyat 30 nap után completely kikopott, tær helyn kisakadt, awik menet välä surlött. A víztártóba csak akkor lehet betenni a kulacsot, ha leveszed a hátadról a táskát. Egy nagy hely van benne pakolni, ami gewat eldeformálódik. We offer Senkinek. A 30L Quechua hátizsák 100x joban bevált nekem.

hiking bag: suck on erdre - redon

very practical, stable and very easy to adjust! a little narrow for large builds, the metal frame does its job well (80km with 15 kg over three days of autonomy). I am satisfied with my purchase


I trekked for 5 days in the Alps. I left independently. I managed to fit all of my stuff in there without any problem! The bag is very well thought out. Being able to open it in suitcase mode is really GREAT. It is very comfortable despite a high load (16kg in total). the only negative point that I have to criticize on the bag is the two compartments of the gourds... they are too small.. yet I have two 1 liter gourds... but I can't manage to fit them put the bottle in one hand... I have to remove the bag to be able to put the bottle in... it's very annoying I admit!


Impeccable finish, great quality, I recommend!

Comfortable but heavy

Used during two two-day treks in the Mercantour, 25km 1700D+ total weight without water 10.7kg. Pros: The backpack is comfortable no pain The ventilation in the back is correct Pleasant color Correct price Possibility of hanging objects thanks to the front pleat seams Large front opening thank you! Several compartments (rare in the competition) Negative points: the straps tend to loosen on their own the hip straps are a little too long from the cup dangling a lot it lacks a front net to put clothes to dry for example very heavy it should go below 2kg!

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This bagpack all in one for travelers

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A comfortable and functional backpack for transitions

Great backpack, nicely designed.

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4 days and 3…

4 days and 3 nights with 14kg at the start. very comfortable. still a bit heavy when empty.

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Many pockets for storage, the capacity is perfect for a trek. Used for the crossing of La Réunion, it remained impervious to humidity. Very practical and comfortable.

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I recommend

I recommend

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Good-looking and practical

Good-looking, practical, affordable~

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Use for a colony…

Use for a traveling colony. Well loaded bag carried by a teenager. Very happy with his bag during the stay. Good quality

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Nice One

Value of money

I chose this bag...

I chose this bag because it integrates the different types of hiking that I practice. Hiking in the Forest with elevation and rocks, example Forest of Fontainebleau. Middle Mountain. High mountain. High Mountain roaming, The tour of the circus of Mafate Ile De La Réunion. which I realize in Oct 2023.

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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 : 69cm, Width: 43cm, Depth: 35 cm

Bag construction

The assembly of the various parts of this bag has been tested to withstand high stress, especially when filled or handled.Every element has been designed to ensure the reliability of the construction: thick front zip (10 mm), reinforced seams at the base of the skirt and on the straps.


Extendable volume: 50 L + 10 L extension thanks to the bag’s top flap with adjustable height. The volume of each backpack is measured using a standardised 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 litres, with a margin of error of just a few %.

Symbium technology

The Symbium concept helps to reduce the swinging effects that tire the trekker. This concept is based on the optimisation of the belt structure, offering a better balance of the backpack during the walk.

How to pack a backpack?

Place your sleeping equipment at the bottom of your backpack. Place your water bladder in the compartment provided for this purpose. Put heavy equipment (tent, stove, food) in the back and place your clothes around it. Your tent or groundsheet can also be placed under the flap or under the bag. Keep your waterproof jacket and warm layer to hand. Place small items for daily use (sun cream, map, glasses, etc.) in the pockets.

Timeless style

We have selected pigment colours and worked with clean lines for a timeless style that will be passed on from generation to generation.

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 colour pigments from the initial thread manufacture. This process reduces this backpack’s CO2 emissions by 20% compared to the previous model.

Why are our rain covers grey?

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

Complementary accessories

Compatible with 7 L half-moon storage bags.

Product testing

Several laboratory tests were carried out to test the strength of the MT900 Symbium backpack. We have carried out: a Martindale test to evaluate the abrasion resistance of this backpack, a tear test (seams), a fatigue test on the compression of the foams, a durability test of rigidity and bending of the aluminium structure (located on the back of the bag).

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

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    Minimal retail footprint

    lowers overhead and indirect costs


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