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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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Pajak Xc3 Backpack 45L Silver Pajak Xc3 Backpack 45L Silver
Pajak
Backpack Xc3 Backpack 45L Silver

  • Recommended price

    £193.51

    -20%

    £154.79

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
mea back to school
RAB Exion 38 Anthracite Graphene RAB Exion 38 Anthracite Graphene
RAB
Backpack Exion 38 Anthracite Graphene

  • Recommended price

    £193.51

    -24%

    £145.99

The RAB Exion 38 Anthracite Graphene backpack combines comfort and functionality with its adjustable carrying system, multiple pockets and weather resistance.
Colour
  • RAB Exion 38 Anthracite Graphene
  • RAB Exion 38 Tempest Blue
RAB Exion 45 Nd Anthracite Graphene RAB Exion 45 Nd Anthracite Graphene
RAB
Backpack Exion 45 Nd Anthracite Graphene

  • Recommended price

    £211.11

    -25%

    £158.31
Colour
  • RAB Exion 45 Nd Anthracite Graphene
  • RAB Exion 45 Nd Mulberry
  • RAB Exion 45 Nd Orion Blue
Deuter Futura Pro 38 SL Ashrose Cassis Deuter Futura Pro 38 SL Ashrose Cassis
Deuter
Backpack Futura Pro 38 SL Ashrose Cassis
  • £202.40
Colour
  • Deuter Futura Pro 38 SL Ashrose Cassis
  • Deuter Futura Pro 38 SL Black Graphite
Deuter Futura Pro 38 SL Black Graphite Deuter Futura Pro 38 SL Black Graphite
Deuter
Backpack Futura Pro 38 SL Black Graphite

  • Recommended price

    £193.51

    -35%

    £125.75
Colour
  • Deuter Futura Pro 38 SL Ashrose Cassis
  • Deuter Futura Pro 38 SL Black Graphite
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
Osprey Sirrus 44 Sevres Blue Osprey Sirrus 44 Sevres Blue
Osprey
Backpack Sirrus 44 Sevres Blue

  • Recommended price

    £202.31

    -16%

    £169.75

-
Colour
  • Osprey Sirrus 44 Medium Gray
  • Osprey Sirrus 44 Sevres Blue
Osprey Stratos 44 Raven Black Osprey Stratos 44 Raven Black
Osprey
Backpack Stratos 44 Raven Black

  • Recommended price

    £202.31

    -26%

    £149.51

-
Colour
  • Osprey Stratos 44 Pine Leaf Green
  • Osprey Stratos 44 Raven Black
Ortovox Traverse 40 Dark Arctic Grey Ortovox Traverse 40 Dark Arctic Grey
Ortovox
Backpack Traverse 40 Dark Arctic Grey

  • Recommended price

    £167.11

    -25%

    £124.87
Colour
  • Ortovox Traverse 40 Dark Arctic Grey
Ferrino Agile 45 Blue Ferrino Agile 45 Blue
Ferrino
Backpack Agile 45 Blue

  • Recommended price

    £140.71

    -15%

    £119.59

The Agile 45 Blue backpack from Ferrino offers optimal carrying comfort for two-day hiking thanks to its breathable back system.
Colour
  • Ferrino Agile 45 Blue
Deuter Aircontact Lite 40+10 Atlantic Ink Deuter Aircontact Lite 40+10 Atlantic Ink
Deuter
Backpack Aircontact Lite 40+10 Atlantic Ink
  • £175.91

-
Colour
  • Deuter Aircontact Lite 40+10 Atlantic Ink
  • Deuter Aircontact Lite 40+10 Black Graphite
Deuter Aircontact Lite 40+10 Black Graphite Deuter Aircontact Lite 40+10 Black Graphite
Deuter
Backpack Aircontact Lite 40+10 Black Graphite

  • Recommended price

    £175.91

    -20%

    £140.71
Colour
  • Deuter Aircontact Lite 40+10 Atlantic Ink
  • Deuter Aircontact Lite 40+10 Black Graphite
RAB Exion 38 Tempest Blue RAB Exion 38 Tempest Blue
RAB
Backpack Exion 38 Tempest Blue

  • Recommended price

    £193.51

    -25%

    £145.11
Colour
  • RAB Exion 38 Anthracite Graphene
  • RAB Exion 38 Tempest Blue
RAB Exion 45 Nd Mulberry
RAB
Backpack Exion 45 Nd Mulberry

  • Recommended price

    £211.11

    -25%

    £158.31
Colour
  • RAB Exion 45 Nd Anthracite Graphene
  • RAB Exion 45 Nd Mulberry
  • RAB Exion 45 Nd Orion Blue
RAB Muon Nd 40 Pewter Graphene RAB Muon Nd 40 Pewter Graphene
RAB
Backpack Muon Nd 40 Pewter Graphene
  • £193.60
Colour
  • RAB Muon Nd 40 Pewter Graphene
DESTOCKAGE
Blue Ice Octopus 45L Shadow Blue Ice Octopus 45L Shadow
Blue Ice
Backpack Octopus 45L Shadow

  • Recommended price

    £140.71

    -25%

    £105.51

The Blue Ice Octopus 45L Shadow is a top-tier, durable climbing backpack with a 45L capacity, designed for practicality with dedicated compartments for gear and adjustable comfort features.
Colour
  • Blue Ice Octopus 45L Shadow
Millet Peuterey 45+10 Red Millet Peuterey 45+10 Red
Millet
Backpack Peuterey 45+10 Red

  • Recommended price

    £211.11

    -12%

    £184.71
Colour
  • Millet Peuterey 45+10 Dark Denim
  • Millet Peuterey 45+10 Red
Osprey Sirrus 36 Medium Grey Osprey Sirrus 36 Medium Grey
Osprey
Backpack Sirrus 36 Medium Grey

  • Recommended price

    £184.71

    -15%

    £156.55

-
Colour
  • Osprey Sirrus 36 Medium Grey
  • Osprey Sirrus 36 Purple Dusk
  • Osprey Sirrus 36 Sevres Blue
Osprey Stratos 36 Nirvana Blue Osprey Stratos 36 Nirvana Blue
Osprey
Backpack Stratos 36 Nirvana Blue

  • Recommended price

    £184.71

    -16%

    £153.91

The Stratos 36 Nirvana Blue backpack from Osprey benefits from an adjustable AirSpeed back panel for optimum comfort on your hikes.
Colour
  • Osprey Stratos 36 Nirvana Blue
  • Osprey Stratos 36 Raven Black
Osprey Stratos 36 Raven Black Osprey Stratos 36 Raven Black
Osprey
Backpack Stratos 36 Raven Black

  • Recommended price

    £184.71

    -16%

    £153.91

Osprey's Stratos 36 Raven Black backpack is perfect for hikers looking for comfort, lightness and practicality for multi-day trips.
Colour
  • Osprey Stratos 36 Nirvana Blue
  • Osprey Stratos 36 Raven Black
Osprey Stratos 44 Pine Leaf Green Osprey Stratos 44 Pine Leaf Green
Osprey
Backpack Stratos 44 Pine Leaf Green

  • Recommended price

    £202.31

    -15%

    £171.51

-
Colour
  • Osprey Stratos 44 Pine Leaf Green
  • Osprey Stratos 44 Raven Black
Patagonia Backpack Terravia Pack 36L Black Overview Patagonia Backpack Terravia Pack 36L Black Back
Patagonia
Backpack Terravia Pack 36L Black
  • £158.31
Colour
  • Patagonia Backpack Terravia Pack 36L Black Overview
Size
  • M

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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.