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Hiking Backpack 20 L - NH Arpenaz 500

Sale price: $49.99 Regular price:

A comfortable, accessorized backpack for making the most of your hikes. You will find a pocket for keeping your picnic lunch cool, as well as a pocket for your phone.

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Sale price: $49.99 Regular price:

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About this item:

  • Carrying comfort: Foam straps for superior comfort
  • Easy to transport: Lightweight and at the right size for compact storage
  • Capacity: 20 Liters
  • Insulated: Keeps food fresh for up to 5 hours without ice packs
  • Versatility: Adjustable compartment storage
Model: 8550925

Product Features

Hiking Backpack 20 L - NH Arpenaz 500 | Our team designed this 20-liter backpack for you to take on day hikes in the forest or on the coast.

A comfortable, accessorized backpack for making the most of your hikes. You will find a pocket for keeping your picnic lunch cool, as well as a pocket for your phone.

A photo of the Hiking Backpack 20 L - NH Arpenaz 500 in use
A photo of the Hiking Backpack 20 L - NH Arpenaz 500 in use

Carrying comfort

2 thick back pads | Padded shoulder straps | Chest belt | 2 Thumb loops


Isothermal and telephone pkts | 2 water bottle holders | Water bladder space | Blanket


Volume: 20 liters (1220.5 in³) | Weight: 2.2 lbs | Dimensions: 17.7” x 9.8” x 7.9”


Keeps foodstuffs fresh for 5 hours without ice packs | Standard: EN 12546-2


Isothermal compartments (4 L) and modular main compartment to adjust your storage

Abrasion resistant

Durable, abrasion-resistant components and assemblies | 10-year warranty

Product Lifestyle Image Gallery

Image Gallery

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Questions & Answers

Look for product information, frequently asked questions, opinions...


What are the two orange clips on the left for? What are the black loops on the straps for?


They are designed for attaching your hiking poles.

By Uluç on Nov 6, 2023 | STAFF

Product Customer Reviews

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1775 Reviews
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Product suitable for…

Product suitable for nature hiking

Great backpack

Tested on vacation and found it to be great

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Very satisfied with this purchase

Bag with a city look, very practical with its many pockets and especially its insulated pocket.

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Perfect for hiking…

Perfect for hiking or going to work. A very versatile and comfortable bag.

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Well enough

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Easy storage with…

Easy storage with its multiple storage pockets but a little tight capacity if you need to hold an anorak and the weight ends up weighing down (it lacks straps at the waist, these are positioned at the thorax and it's not the most comfortable° .

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Practical. Lots of pockets.…

Practical. Lots of pockets. Good size. Beautiful color. The +: the insulated compartment. It's a shame that the backpack doesn't come with a rain cover, as is the case with other Decathlon backpacks.

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It's easy to carry, but it's a pity that it will damage your clothes.

A very functional bag, easy to carry and durable. Unfortunately, when the clothes and pants were worn on the back, there were areas where they came into contact with the backpack. They were worn to the point of small hair balls after just one wear, and the Decathlon shorts were almost torn.

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Good Comfort

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good product

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Very versatile backpack. I haven't used a thermal pocket yet, but it allows you to have a fairly large space separated from the rest, or put together. Side pockets allow you to carry large bottles.

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A part of me

I use it daily for work. No problem to fit everything in without problems.

Very good but...

This backpack is very well designed for hiking but after using it for 30 days during my last trip, all my t-shirts and sweaters are damaged at the lower back because the bag is not held in place, it rubs and wear out the clothes (I can send you photos). A small downside is that the phone pocket does not allow you to put a phone.

Well done

comfortable, ergonomic, practical
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Additional Product Information


Main fabric: 100.0% Polyester ; Lining: 100.0% Polyester ; Webbing: 100.0% Polypropylene ; Coating: 100.0% Polyurethane

Dimensions of picnic blanket and pockets

Dimensions of picnic blanket: 23.6” x 31.5”Dimensions of the phone pocket: 2.8” x 6.3”Dimensions of the computer pocket/water bladder: 10.6” x 11.4” x 1.2”

How is volume measured?

The volume of each backpack is measured using a standard 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 to adjust your backpack

1 - Loosen all the straps (straps, belt, load adjuster straps)2 - Put on the backpack3 - Tighten the shoulder straps4 - Adjust the load adjuster straps as needed

How to fill your backpack

Put your heavy items at the bottom. Pack your clothes around these items. Keep your waterproof jacket and/or fleece within arm’s reach. Place small items for daily use (sunblock, map, glasses, etc.) in the pockets. The water bladder will be placed in the compartment provided along the back, and the water bottle in the outer water bottle holder pockets provided for this purpose.

Developed based on your feedback, tested with hikers

This bag was designed based on all the customer feedback and hikers' observations.Indeed, the idea is to separate and keep your picnic lunch cool when hiking, while separating it from other belongings (clothing, wallet, telephone, etc.).This bag has been tested by many hikers and has enabled us to test its functions and make some improvements.

Tested for optimum durability and strength

We carry out several laboratory tests to validate the bag's components: fabric, buckles, straps, foam, zippers. For example, for a fabric, we test the resistance to abrasion and tearing, colorfastness when exposed to UV light and washing, and waterproofing. We also conduct tests to check the resistance of assembly using a dummy that reproduces the movements of a hiker to replicate several years of wear and tear on the bag.

Our environmental approach - why use greige?

Because we are aware that we must act to preserve our playground, Quechua is committed to limiting the environmental impact of its products. Greige means that the fabric is not dyed. The color is in its raw state. This significantly reduces the environmental impact of the product. Dyeing has a high environmental impact as it requires a lot of water and releases wastewater. This is not enough, we are working to make this product eco-designed.

Product testing

It’s in France, at the foot of Mont Blanc, that our design team conceives, designs, and creates Quechua products. We test them in the field with other hikers to make sure that they are comfortable and durable. Brittany, Corsica, Réunion Island, Nice, etc. This backpack has been tested and improved by hikers in Nice and on Réunion Island in different weather conditions.

Storage instructions

Store your backpack in a dry place.



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For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

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    lowers overhead and indirect costs


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