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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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Osprey Sirrus 44 Sevres Blue Osprey Sirrus 44 Sevres Blue Extra 5% off
Osprey
Backpack Sirrus 44 Sevres Blue

  • Recommended price

    £202.31

    -20%

    £161.42

-
Colour
  • Osprey Sirrus 44 Medium Gray
  • Osprey Sirrus 44 Sevres Blue
Black Diamond Speed 40 Backpack Sulphur Black Diamond Speed 40 Backpack Sulphur Extra 5% off
Black Diamond
Backpack Speed 40 Backpack Sulphur

  • Recommended price

    £158.31

    -20%

    £126.63

The Black Diamond Speed 40 Sulphur backpack is an ideal companion for mountaineering and climbing, offering lightness, sturdiness and a 40-liter capacity for your two-day adventures.
Colour
  • Black Diamond Speed 40 Backpack Sulphur
Size
  • M-L (47-55)
Osprey Stratos 44 Pine Leaf Green Osprey Stratos 44 Pine Leaf Green Extra 5% off
Osprey
Backpack Stratos 44 Pine Leaf Green

  • Recommended price

    £202.31

    -20%

    £161.42

-
Colour
  • Osprey Stratos 44 Pine Leaf Green
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.