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Mountain Walking Backpack 40 L MH100

Sale price: $30.00 Regular price: $49.99

A ventilated back, comfortable to wear with stomach belt. A 5-liter hat pocket, a sliding smartphone pocket on the front of the belt, a secret pocket inside the bag.

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Sale price: $30.00 Regular price: $49.99

Free shipping over $49

Final Sale: No returns or exchanges

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8504465

Product Videos

Product Features

Mountain Walking Backpack 40 L MH100 | At the foot of Mont Blanc, our passionate mountain team designed these adjustable pants for beginner hikers (3-4 hours / outing < 6 miles)

A ventilated back, comfortable to wear with stomach belt. A 5-liter hat pocket, a sliding smartphone pocket on the front of the belt, a secret pocket inside the bag.

A photo of the Mountain Walking Backpack 40 L MH100 in use

Carrying comfort

Thumb loops. Load adjuster straps. Stomach support belt.


Well-ventilated back (AirCooling label), which regulates back perspiration


Volume: 40 L (2440 cubic inches) / Dimensions: H 25.2"; L 13.8"; D 9.8".

Multiple compartments

Pockets: 1 out, 1 inner, water bladder, 2 mesh side pockets,1 sliding waist pack

Abrasion resistant

10-year guarantee


2.4 lbs

Easy to open/close

The main volume has a quick-access front opening on the bottom of the bag

Product Lifestyle Image Gallery

Image Gallery

Mountain Walking Backpack 40 L MH100,dark petrol blue 

Mountain Walking Backpack 40 L MH100,dark petrol blue 

Mountain Walking Backpack 40 L MH100,dark petrol blue

Questions & Answers

Product Customer Reviews

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Mountain Walking Backpack 40 L MH100,dark petrol blue
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Nice for one night stay camping

Go for it.

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would love bit of more zips

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Mountain walking rucksack - MH100 40L QUECHUA

Comfortable and has everything you need for happy hike

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Great for traveling

It's a great backpack for traveling. Fits a lot of cloth and really easy to strap on.

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Good festival backpack

Just the right size, and good quality

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Back pack

Very good quality and price

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It is worth the price.

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Very comfortable to carry and accommodates many things

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Bag is good for very short trip to carry about 9.45kg. Weight less bag and not giving more pressure to the shoulder. Good.

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Experience from a trip

Went for a 7 day trip with this bag, bag is nice and spacious, it’s water resistance but go with rain cover if going to a place with heavy rainfall, it would be nice if they provide more pockets inside. Overall it’s a nice product to use.

Easy to use and the shoulder pad is awesome

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good product

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Don't Buy This Product...!

Using decathlon products from last 2 years but i never seen product like this..! Weight management and shoulder belts giving issues while hiking getting all weight in lower back ..! If you want to save your back while hiking or trekking i repeat never buy this bag...!

Hello Mahesh,

Thank you for taking your time and providing us with your feedback about our product. We are sorry that the product has not been up to your expectations and we apologize for the inconvenience.

We would request you to please visit your nearest Decathlon store and get this product physically checked so that our store team can help you with the best possible solution. 

Also, you can write back to us with the details about the exact issue and share some images of the product with us so that we can check them and help you with the right possible solution.

We stay available for any other queries related to the products and services.


Harness Slipping from left shoulder

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Additional Product Information


Main fabric

  • 100% Polyester cationic


  • 100% Polyester cationic


  • 10% Spandex
  • 90% Polyester cationic


  • 100% Polyurethane

Foam part

  • 100% Polyethylene low density

Laboratory testing

We carry out laboratory tests to validate all component parts: fabric, buckles, straps, foam and zippers. For example, for fabric: resistance to wear, tearing, colorfastness under UV rays, washing, waterproofing. 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 then reproduces the movement of fast walking over thousands of cycles.

10-year warranty, technical partnership

The heavy stitching research and development department, Quechua's partner for researching and testing its components and assemblies, conducted tests simulating backpack aging. The tests focused on components, seams and the end product. As a result of these tests, Quechua can guarantee all bags tested for a duration of 10 years from the date of purchase indicated on the sales receipt.

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 covered by the guarantee, it will be repaired or exchanged free of charge. This commercial warranty does not exclude applicable legal warranties depending on the country and/or State.

How is volume measured?

The volume of each backpack is measured using a standardized 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 liters.

How do i adjust my backpack?

1 - Loosen all the straps (straps, hip belt, load adjuster straps). 2 - Put the backpack on. 3 - 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 belt should be placed around the waist. 4 -Tighten the shoulder straps. 5 - Adjust the load adjuster straps as needed.

How to pack a backpack?

Put your bedding at the bottom. Put heavy gear near to the back. Pack your clothes around these items. Keep a rainproof jacket and fleece close at hand. Place small items for daily use (sunblock, map, glasses, etc.) in the pockets. If carrying a hydration pack (water bladder), this should be placed in its special pocket along the back.

Environmental measures

The environmental impact of the product is calculated over the entire lifecycle of the product using different indicators. A global ABCDE rating is provided to help you easily identify products with the best environmental performance by comparing products of the same type with each other (T-shirts, pants, backpacks, etc.). Decathlon is a voluntary participant in this environmental labeling initiative. For further information:



Product testing

All our models are tested by users representative of our target market in conditions identical to those you encounter yourself when using them. We believe that carrying out 'real-life' testing is the only way to design and continuously advance the technical relevance and design of all our Quechua products.

Storage instructions

Store the backpack in a dry place.

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

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