Symbium men's Trekking backpack 70+10 litres dark blue

Réf :
Key feature
A trekking backpack, with maximum wearing comfort: symbium concept: adapts to walkers' movements and prevents the backpack swaying. Very practical accessible pocket.
Users reviews
3 / 5 2 ratings

Users reviews

3 / 5 2 ratings
1 users recommended this product
  • Man
    40-49 years old
    20 November 2016
    Use since 2 to 8 weeks
    That review has been deposited on this product version
    Innovative. Very comfortable. Better guidance req
    Sturdy frame. Snug fit. V adjustable. High adjuster needs a knot in it to stop slippage.

    Its complicated. There are a lot of features that work together to make the bag really comfortable. It took me a while to figure it out but when you you do, it works really well. After pouring a glass of water over it....yes its waterproof....apart from the zips....but that was after pooled water on them for 30mins. The top bit again takes some getting used to but is great for putting a camera in for v quick access on the go. Plastic map holder on the underside is genius. The side pockets work really well and are huge. 4th rucksack. Most comfy. Most useful features. Great companion

  • Man
    50-59 years old
    22 July 2016
    Use since 2 to 8 weeks
    That review has been deposited on this product version
    Not very good
    It has a large capacity Fit was terrible. Adjusters jammec or slipped

    My previous comments seem to have been moderated so I am trying again. I had to cut a 5 day trip carrying about 17kg short after the rucksack was hurting me so much. The shoulder adjusters kept jamming and could not be set up properly. The waist belt straps kept slipping so the rucksack kept sliding off my hips. The back length adjuster kept slipping resulting in the wrong length ratio. Also the back length adjuster kept jamming into the small of my back. There is nothing to recommend this rucksack.

    Brand's answer :


    Thanks for getting in touch regarding the Symbium access trekking backpack. I apologise for the discomfort and inconvenience caused by the backpack. I shall pass you comments on to the design team of our backpack range.


    Chris Allen UK Market Manager DECATHLON

    Alan find this answer useful

User benefits

Carrying comfort
Foam for ventilation and comfort for masculine body shape: symbium technology
Multiple compartments
Pockets: 3 ext, 1 int, 2 belt. Pole/ice axe loops. Access via base, compartments
10 year warranty Very hardwearing thanks to the fabric and reinforced seams.
volume: 70 L + a 10L pocket on the top of the bag. Weight: 2.850 kg
Environmental impact
Life cycle comparison: Backpack -

Technical card

Trek duration
2 to 7 days
60 Litres
Freedom of movement
Rain cover
Main fabric : 100.0% Polyamide (PA) Yoke : 100.0% Polyester (PES) Lining : 100.0% Polyester (PES)
Approved by
All our backpacks are tested in the field by users who represent the target market under conditions identical to those found in typical use. Our Field Test Missions team up our product managers with people not affiliated with QUECHUA to test, improve and validate our products.
We test the resistance of the bag to abrasion, tearing, the resistance of colours to UV rays and washing and waterproofing. Tests are conducted in the field and laboratory. Then a mannequin reproduces wear on the weighted sac via fast walking movements for thousands of cycles to test the resistance of assemblages. The components (fabric, buckles, straps, foam, zips, etc.) are also tested separately. As a result we can guarantee these bags for 10 years.
Designed to
men trekking regularly in the mountains for several days with semi-autonomy.
10 years


Storage Tips
Store your bag in a dry place
Restricted use
If you are a small size, please check in stores


How to pack a backpack?
How to pack a backpack? Put your bedding at the bottom. Put heavy gear (tent, camp stove, food) near the back. Pack your clothes around these items. The groundsheet can be placed under the flap; the tent beneath the pack if there is no space inside. Keep a rainproof jacket and fleece close at hand. Place small items for daily use (sun cream, map, glasses etc.) in the pockets. Put the water bladder in the compartment provided
How to adjust your backpack?
FIRST, LOOSEN all straps (shoulder straps, belt, load adjuster straps). PUT THE BACKPACK ON. For backpacks with a capacity of 50 L or more, PLACE THE HIP BELT CORRECTLY (it should sit over the pelvis) and TIGHTEN IT. For smaller backpacks, the hip belt should be placed around the waist. TIGHTEN THE SHOULDER STRAPS. Finally, ADJUST THE LOAD ADJUSTER STRAPS as needed.
Adjusting your backpack height?
Set the bag for the height you think will be correct and then adjust it (see. "Adjusting your backpack"). With the belt on your pelvis, put the straps around the front part of your shoulders and the load adjuster straps (which are sometimes also height-adjustable) at an angle of around 45° (they should never be horizontal or vertical). When trying it on, if the back seems too short or too long, readjust and try again until you are satisfied.
The Symbium Access system
The Symbium Access combines the advantages of the Symbium system that enables freedom of movement thanks to the waist adjustment around the lumbar region. it is also equipped with the Access System: 1 pocket that can be easily moved to the front of the upper body: providing easy access to many items while walking, possibility of reading a map easily. This also allows you to shift some of the weight to the front,: helps the hiker to have a straighter back and a more normal stance.
How is backpack volume measured?
The volume of each backpack is measured using a standardised method: we fill the main compartment as well as each pocket with little balls. Then we empty these balls into a graduated container, which gives the equivalent volume in litres, with a margin of a few %. The weight indicated is that of our benchmark sample. There may be slight variations.
10-year guarantee, conditions
The guarantee covers any backpack faults, except those caused by normal wear and tear and improper use. This special 10-year guarantee will only be granted upon presentation of the product and sales receipt. If the product is under guarantee, it will be repaired or exchanged for free. This commercial guarantee does not affect any statutory guarantees that are applicable in the country of purchase.
A score for comparing products' environmental impact
The product's environmental impact is calculated across its entire life cycle using different indicators. An overall ABCDE score is attributed to help you more readily identify the products with the best environmental performance by comparing the same type of product (T-shirts, trousers, backpacks, etc.) Decathlon is voluntarily committed to visually displaying environmental information. For more information visit:

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