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The most breathable and comfortable in the range

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Trek 900 70L + 10L Women's Rucksack - Maroon

Our teams of trekking enthusiasts have developed this bag especially for women travelling in the mountains for several days and carrying 13 to 18kg. It's durable and lightweight with a carry system that is comfortable for long expedition-type treks lasting several weeks and has an adjustable back and strap for a personalised fit.
  • Lots of pockets, many you can reach on the move
  • Really hard wearing, so don't worry about scraping it
  • Very comfortable for long periods of time
until £99.99 -%


Before£109.99 NoW£99.99***
This price includes a recycling fee for electrical equipment and batteries DecathlonDeeeTaxMentionAfterPrice / Since01/08/2018

From To

* Sales from to Until end of stock
* From and limited stock
£99.99 %
This price includes a recycling fee for electrical equipment and batteries DecathlonDeeeTaxMentionAfterPrice / Since

* From To

* Sales from to Until end of stock
* From and limited stock
Check availability in store


Carrying comfort Carry system for women
Adjustable back and straps
Symbium system
Multiple compartments pockets: 2 outer net pockets 3 zipped pockets 2 waist pockets 2 cup holder
Capacity volume: 77L
weight: 2.70 Kg
size of filled bag in cm: H 70 x W 35 x D 35 cm
Abrasion resistance 10-year warranty
polyamide-reinforced bag base
product tested in the field


Backpack technical tests.

We conduct lab tests to validate the following: fabrics, buckles, straps, foams, zips, etc. Example, for a fabric: resistance to wear, tearing, colour-fastness under UV rays, washing, waterproofing, etc. A final test on the finished product simulates the kind of treatment to which it will be subjected over several years, to assess the strength of the assembly: The backpack is weighted, then placed on a dummy which reproduces the movement of fast walking through thousands of cycles.

10-year technical partnership warranty

The Strenfit component brand, Quechua's partner for researching and testing its components and assemblies, conducted tests simulating backpack ageing. These tests were conducted on the components, the seams and the finished product. The results of these tests are used by Quechua and Strenfit to guarantee the bags for 10 years from the purchase date shown on the receipt.

How to pack a backpack?

Put your bedding at the bottom. Carry heavy gear (tent, stove, food) closest to your back. Pack your clothes around these items. The groundsheet can be placed under the flap; the tent goes under the bag if it doesn't fit inside. Keep your waterproof jacket and fleece to hand. In the pockets, spread out the small equipment you use during the day (sun cream, map, sunglasses, etc). If carrying a hydration pack (water bladder), this should be placed in its special pocket along the back.

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. We then empty the balls into a graduated container to measure the equivalent volume in litres within a few percentage points.
The net weight is that of our reference sample. There may be slight variations.

A score for comparing products' environmental impact

The product's environmental impact is calculated over its entire life cycle using different indicators.
An overall score from A to E is given to help you easily identify the most environmentally-friendly products by comparing products of the same type (T-shirts, trousers, backpacks, etc).
Decathlon is committed to displaying the environmental data of its products.
For more information:

Why are our rain covers coloured grey?

The grey colour is neutral and therefore consumes less dye.
The component is made of BITON: as a result, the environmental impact of the MT900 70L by 7.3% less than the former model: symbium access.
By using dope-dye for the lining materials, much less water is consumed than a more brightly coloured fabric.
It is by taking small measures of this kind that Forclaz is demonstrating its commitment to improve the environmental impact of its products.

symbium technology

In order to be comfortable, a backpack must also be balanced as you walk along. The symbium technology is an articulation of the waistband that allows the backpack to conform to the trekker's movements.


2.7 kg

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Main fabric
100.00% Polyester (PES)
100.00% Polyester (PES)
Yoke (General)
100.00% Polyamide
65.00% Polyamide, 35.00% Elasthane
bag cover
100.00% Polyester (PES)
100.00% Polypropylene (PP)
100.00% Polyurethane (PU)
Washing instructions
Hand wash
Hand wash
Do not bleach
Do not bleach
Do not tumble dry
Do not tumble dry
Do not iron
Do not iron
Do not dry-clean
Do not dry-clean
Stock advice Store your bag in a dry place.


DECATHLON store mountain guides: English, Spanish, Indian, French, German, Dutch, helped conceive and design this product, throughout the entire development process. Do you have any questions? or do you wish to become a tester or co-designer, contact the product manager who will be delighted to respond.
Test Product All our backpacks are tested in the field by users who represent the target market under the same conditions as you would encounter in use. In particular, our "Mission Tests" bring together the product manager with people who are not affiliated with QUECHUA to test, improve and validate our products. This specific model was approved by hikers touring Mont Blanc in June 2017.
Guarantee : 10 Years