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40l hiking backpacks

A 40-litre hiking backpack represents a high-capacity option within the range of packs designed for trekking and hillwalking. This size allows you to carry substantial gear while maintaining a structure optimised for comfortable load carrying. It provides extra space to organise clothing, accessories, and equipment efficiently.

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Deuter Backpack Futura Pro 38 SL Black Graphite Overview Deuter Backpack Futura Pro 38 SL Black Graphite Back FLASH DAYS
Deuter
Backpack Futura Pro 38 SL Black Graphite

  • Recommended price

    £193.51

    -36%

    £123.11
Colour
  • Deuter Backpack Futura Pro 38 SL Black Graphite Overview
BOX-access_en
Ortovox Haute Route 38 S Black Steel Ortovox Haute Route 38 S Black Steel FLASH DAYS
Ortovox
Backpack Haute Route 38 S Black Steel

  • Recommended price

    £175.91

    -35%

    £114.31
Colour
  • Ortovox Haute Route 38 S Black Steel
Ortovox Backpack Peak 45 Deep Ocean Overview Ortovox Backpack Peak 45 Deep Ocean Back FLASH DAYS
Ortovox
Backpack Peak 45 Deep Ocean

  • Recommended price

    £219.91

    -22%

    £171.51

-
Colour
  • Ortovox Backpack Peak 45 Deep Ocean Overview
RAB Backpack Exion 38 Anthracite Graphene Overview RAB Backpack Exion 38 Anthracite Graphene Back FLASH DAYS
RAB
Backpack Exion 38 Anthracite Graphene

  • Recommended price

    £193.51

    -20%

    £153.91

The RAB Exion 38 Anthracite Graphene backpack combines comfort and functionality with its adjustable carrying system, multiple pockets and weather resistance.
Colour
  • RAB Backpack Exion 38 Anthracite Graphene Overview
  • RAB Backpack Exion 38 Tempest Blue Overview
RAB Backpack Exion 38 Tempest Blue Overview RAB Backpack Exion 38 Tempest Blue Side FLASH DAYS
RAB
Backpack Exion 38 Tempest Blue

  • Recommended price

    £193.51

    -27%

    £140.71
Colour
  • RAB Backpack Exion 38 Anthracite Graphene Overview
  • RAB Backpack Exion 38 Tempest Blue Overview
Blue Ice Firecrest 38L Dark Slate Blue Ice Firecrest 38L Dark Slate FLASH DAYS
Blue Ice
Backpack Firecrest 38L Dark Slate

  • Recommended price

    £158.31

    -20%

    £126.63

-
Colour
  • Blue Ice Firecrest 38L Dark Slate
  • Blue Ice Backpack Firecrest 38L Red Clay Overview
Size
  • M-L (46-52)
Blue Ice Backpack Firecrest 38L Red Clay Overview Blue Ice Backpack Firecrest 38L Red Clay Back FLASH DAYS
Blue Ice
Backpack Firecrest 38L Red Clay

  • Recommended price

    £158.31

    -20%

    £126.63

-
Colour
  • Blue Ice Firecrest 38L Dark Slate
  • Blue Ice Backpack Firecrest 38L Red Clay Overview
Size
  • M-L (46-52)
Millet Prolighter 38+10 Saphir Millet Prolighter 38+10 Saphir FLASH DAYS
Millet
Backpack Prolighter 38+10 Saphir

  • Recommended price

    £175.91

    -20%

    £140.71
Colour
  • Millet Prolighter 38+10 Red
  • Millet Prolighter 38+10 Saphir
BOX-secu_en
Osprey Backpack Sirrus 36 Muted Space Blue Overview Osprey Backpack Sirrus 36 Muted Space Blue Back FLASH DAYS
Osprey
Backpack Sirrus 36 Muted Space Blue

  • Recommended price

    £175.91

    -22%

    £136.31

-
Colour
  • Osprey Sirrus 36 Medium Grey
  • Osprey Backpack Sirrus 36 Muted Space Blue Overview
  • Osprey Sirrus 36 Purple Dusk
  • Osprey Backpack Sirrus 36 Succulent Green Overview
Osprey Backpack Sirrus 36 Succulent Green Overview Osprey Backpack Sirrus 36 Succulent Green Back FLASH DAYS
Osprey
Backpack Sirrus 36 Succulent Green

  • Recommended price

    £175.91

    -22%

    £136.31

-
Colour
  • Osprey Sirrus 36 Medium Grey
  • Osprey Backpack Sirrus 36 Muted Space Blue Overview
  • Osprey Sirrus 36 Purple Dusk
  • Osprey Backpack Sirrus 36 Succulent Green Overview
Osprey Stratos 44 Raven Black Osprey Stratos 44 Raven Black
Osprey
Backpack Stratos 44 Raven Black

  • Recommended price

    £202.31

    -15%

    £171.51

-
Colour
  • Osprey Stratos 44 Pine Leaf Green
  • Osprey Stratos 44 Raven Black
Pajak Xc3 Backpack 45L Silver Pajak Xc3 Backpack 45L Silver
Pajak
Backpack Xc3 Backpack 45L Silver

  • Recommended price

    £193.51

    -18%

    £158.31

Pajak's Xc3 Backpack 45L Silver is ideal for two-day outings in the mountains, thanks to its 45-liter volume and lightweight, rugged design.
Colour
  • Pajak Xc3 Backpack 45L Silver
Millet Prolighter 30+10 Women Saphir Millet Prolighter 30+10 Women Saphir
Millet
Backpack Prolighter 30+10 Women Saphir

  • Recommended price

    £149.51

    -15%

    £126.63

The Millet Prolighter 30+10 Women Saphir backpack blends tailored fit, technical features and eco-conscious materials for ski touring, mountaineering or alpine hiking adventures.
Colour
  • Millet Prolighter 30+10 Women Saphir
RAB Exion 45 Nd Orion Blue RAB Exion 45 Nd Orion Blue FLASH DAYS
RAB
Backpack Exion 45 Nd Orion Blue

  • Recommended price

    £211.11

    -27%

    £153.91

Perfect for long hikes, the RAB Exion 45 Nd Orion Blue women's backpack carries all your gear.
Colour
  • RAB Exion 45 Nd Orion Blue
Ferrino Backpack Finisterre 40 Green Overview Ferrino Backpack Finisterre 40 Green Back FLASH DAYS
Ferrino
Backpack Finisterre 40 Green

  • Recommended price

    £140.71

    -20%

    £112.55

Ferrino's Finisterre 40 Green backpack is the ideal companion for two-day hikes, combining comfort, functionality and a commitment to eco-responsibility.
Colour
  • Ferrino Backpack Finisterre 40 Green Overview
CRÉEZ VOTRE PACK PERSONNALISÉ
Mammut Backpack Lithium 40 Women Marine Black Overview Mammut Backpack Lithium 40 Women Marine Black Back FLASH DAYS
Mammut
Backpack Lithium 40 Women Marine Black

  • Recommended price

    £167.11

    -23%

    £127.51

With its generous 40-liter volume, the Mammu Lithium 40 Women Marine Black women's backpack is ready for the most demanding hikes and expeditions.

Colour
  • Mammut Backpack Lithium 40 Women Marine Black Overview
Millet Ubic 40L Women E-Dark Red Millet Ubic 40L Women E-Dark Red
Millet
Backpack Ubic 40L Women E-Dark Red

  • Recommended price

    £167.11

    -14%

    £142.47

-
Colour
  • Millet Ubic 40L Women E-Black Dark Blue
  • Millet Ubic 40L Women E-Dark Red
Picture Backpack Off Trax 30+10 Backpack Tobacco Overview Picture Backpack Off Trax 30+10 Backpack Tobacco Back
Picture
Backpack Off Trax 30+10 Backpack Tobacco
  • £140.71
Colour
  • Picture Off Trax 30+10 Backpack Black
  • Picture Backpack Off Trax 30+10 Backpack Tobacco Overview
Osprey Sirrus 44 Medium Gray Osprey Sirrus 44 Medium Gray
Osprey
Backpack Sirrus 44 Medium Gray

  • Recommended price

    £202.31

    -15%

    £171.51

-
Colour
  • Osprey Sirrus 44 Medium Gray
  • Osprey Sirrus 44 Sevres Blue
Ortovox Backpack Traverse 38 S Dark Arctic Grey Overview Ortovox Backpack Traverse 38 S Dark Arctic Grey Side FLASH DAYS
Ortovox
Backpack Traverse 38 S Dark Arctic Grey

  • Recommended price

    £167.11

    -23%

    £127.51
Colour
  • Ortovox Backpack Traverse 38 S Dark Arctic Grey Overview
  • Ortovox Backpack Traverse 38 S Wild Berry Overview
Ferrino Backpack Agile 45 Blue Overview Ferrino Backpack Agile 45 Blue Back FLASH DAYS
Ferrino
Backpack Agile 45 Blue

  • Recommended price

    £140.71

    -28%

    £101.11

The Agile 45 Blue backpack from Ferrino offers optimal carrying comfort for two-day hiking thanks to its breathable back system.
Colour
  • Ferrino Backpack Agile 45 Blue Overview
Deuter Aircontact Core 45+10 SL Graphite Deuter Aircontact Core 45+10 SL Graphite
Deuter
Backpack Aircontact Core 45+10 SL Graphite
  • £246.31

-
Colour
  • Deuter Aircontact Core 45+10 SL Graphite
  • Deuter Aircontact Core 45+10 SL Grove Ivy
CRÉEZ VOTRE PACK PERSONNALISÉ
Deuter Aircontact Core 45+10 SL Grove Ivy Deuter Aircontact Core 45+10 SL Grove Ivy
Deuter
Backpack Aircontact Core 45+10 SL Grove Ivy
  • £246.31

-
Colour
  • Deuter Aircontact Core 45+10 SL Graphite
  • Deuter Aircontact Core 45+10 SL Grove Ivy
RAB Backpack Airox 36 Black Overview RAB Backpack Airox 36 Black Side FLASH DAYS
RAB
Backpack Airox 36 Black

  • Recommended price

    £175.91

    -20%

    £140.71
Colour
  • RAB Backpack Airox 36 Black Overview
Salewa Backpack Alp Mate 36 Dark Olive Overview Salewa Backpack Alp Mate 36 Dark Olive Back FLASH DAYS
Salewa
Backpack Alp Mate 36 Dark Olive

  • Recommended price

    £114.31

    -20%

    £91.43

-
Colour
  • Salewa Backpack Alp Mate 36 Dark Olive Overview
  • Salewa Backpack Alp Mate 36 Onyx Overview
Salewa Backpack Alp Mate 36 Onyx Overview Salewa Backpack Alp Mate 36 Onyx Back FLASH DAYS
Salewa
Backpack Alp Mate 36 Onyx

  • Recommended price

    £114.31

    -20%

    £91.43

-
Colour
  • Salewa Backpack Alp Mate 36 Dark Olive Overview
  • Salewa Backpack Alp Mate 36 Onyx Overview

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Advantages of a 40-litre capacity

A 40-litre capacity offers extended volume, enabling you to carry more gear than a mid-sized pack. This storage volume promotes organised packing thanks to a generous main compartment complemented by secondary pockets and external attachment points.

This capacity allows you to pack:

  • additional layers
  • extra equipment
  • larger water or food supplies
  • technical accessories secured to the outside of the pack

Organisation and carrying comfort of a 40-litre pack

A 40L trekking backpack enables you to carry a moderate load in a stable and balanced way. The carrying systems feature structured back panels, ergonomic shoulder straps, and supportive hip belts to distribute the weight evenly between shoulders and hips.

The design of the carrying system is crucial. Most models include:

  • a structured hip belt
  • ergonomic shoulder straps
  • a reinforced or ventilated back panel
  • side compression straps
  • attachment points for external gear

An even distribution of the pack’s weight between shoulders and hips helps maintain load stability while ensuring comfortable carrying over long distances.

Other available capacities

If you’re looking for full autonomy for long-distance trekking, visit our dedicated page.

Also explore our full range in the hiking backpacks category, as well as our Guide to choosing a hiking backpack.

FAQ

How many kilos can a 40-litre backpack carry?

For hiking, a 40-litre backpack can typically carry between 8 and 15 kg, depending on the quality of the carrying system (frame, hip belt, back panel).

What are the dimensions of a 40L backpack?

For trekking, a 40-litre backpack generally measures between 55 and 65 cm in height, 28 to 32 cm in width, and 20 to 25 cm in depth. The most common size is around 60 × 30 × 22 cm. Dimensions may vary slightly depending on the design and carrying system.

Buy your mountain backpack at Glisshop

As a specialist in outdoor equipment, Glisshop offers a wide selection of rucksacks. Those dedicated to hiking are chosen for their practical design, genuine comfort, and reliability in the field. The expertise of our team ensures that we can recommend models suited to every type of user, with precise guidance to help you select the most appropriate capacity for your needs.