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40l hiking backpacks

40-Litre Backpacks: The Go-To Choice for Hikers and Outdoor Enthusiasts

40-litre hiking backpacks have become a staple for hiking and outdoor activities. Offering the perfect capacity for multi-day trips, they strike the ideal balance between lightweight design, practicality, and comfort. These rucksacks are spacious enough to carry all the essentials and are particularly suited for mountain hikes, treks, or winter activities such as ski touring. With their smart features and ergonomic designs, these models are a strategic choice for adventure lovers. If you need a smaller capacity or are unsure about which volume to choose, check out Glisshop’s wide range of 20L backpacks and 30L backpacks.

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Millet Backpack Ubic 40L E-Black Sand Overview Millet Backpack Ubic 40L E-Black Sand Back
Millet
Backpack Ubic 40L E-Black Sand

  • Recommended price

    £165.21

    -20%

    £132.15
Colour
  • Millet Backpack Ubic 40L E-Black Sand Overview
  • Millet Backpack Ubic 40L E-Dark Blue Overview
Millet Backpack Ubic 40L E-Dark Blue Overview Millet Backpack Ubic 40L E-Dark Blue Side
Millet
Backpack Ubic 40L E-Dark Blue

  • Recommended price

    £165.21

    -30%

    £114.75
Colour
  • Millet Backpack Ubic 40L E-Black Sand Overview
  • Millet Backpack Ubic 40L E-Dark Blue Overview
Black Crows Dorsa 37 Black Black Crows Dorsa 37 Black
Black Crows
Backpack Dorsa 37 Black

  • Recommended price

    £200.01

    -30%

    £139.11
Colour
  • Black Crows Dorsa 37 Black
Ortovox Backpack Peak 42 S Heritage Blue Overview Ortovox Backpack Peak 42 S Heritage Blue Side
Ortovox
Backpack Peak 42 S Heritage Blue

  • Recommended price

    £217.41

    -36%

    £139.11

-
Colour
  • Ortovox Backpack Peak 42 S Heritage Blue Overview
  • Ortovox Peak 42 S Wild Berry
Millet Backpack Prolighter 30+10 W Indian Overview Millet Backpack Prolighter 30+10 W Indian Detail
Millet
Backpack Prolighter 30+10 W Indian

  • Recommended price

    £147.81

    -41%

    £86.91
Colour
  • Millet Backpack Prolighter 30+10 W Indian Overview
  • Millet Backpack Prolighter 30+10 Women Saphir Overview
Ortovox Backpack Traverse 40 Black Raven Overview Ortovox Backpack Traverse 40 Black Raven Side
Ortovox
Backpack Traverse 40 Black Raven

  • Recommended price

    £165.21

    -20%

    £131.28
Colour
  • Ortovox Backpack Traverse 40 Black Raven Overview
  • Ortovox Backpack Traverse 40 Hot Orange Overview
Deuter Backpack Aircontact Core 45+10 SL Old Shale Ivy Overview Deuter Backpack Aircontact Core 45+10 SL Old Shale Ivy Side
Deuter
Backpack Aircontact Core 45+10 SL Old Shale Ivy

  • Recommended price

    £226.11

    -40%

    £134.76

The Deuter Aircontact Core 45+10 SL Shale-Ivy women’s trekking backpack is a very comprehensive and comfortable model for multi-day hikes.  
Colour
  • Deuter Backpack Aircontact Core 45+10 SL Graphite Black Overview
  • Deuter Backpack Aircontact Core 45+10 SL Grove Ivy Overview
  • Deuter Backpack Aircontact Core 45+10 SL Old Shale Ivy Overview
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Millet Backpack Peuterey 45+10 Dark Denim Overview Millet Backpack Peuterey 45+10 Dark Denim Side
Millet
Backpack Peuterey 45+10 Dark Denim

  • Recommended price

    £208.71

    -30%

    £145.20
Colour
  • Millet Backpack Peuterey 45+10 Dark Denim Overview
  • Millet Backpack Peuterey 45+10 Red Overview
  • Millet Backpack Peuterey 45+10 Red Overview
Millet Backpack Ubic 40L Women E-Black Dark Blue Face Millet Backpack Ubic 40L Women E-Black Dark Blue Behind
Millet
Backpack Ubic 40L Women E-Black Dark Blue

  • Recommended price

    £165.21

    -30%

    £114.75

-
Colour
  • Millet Backpack Ubic 40L Women E-Black Dark Blue Face
  • Millet Backpack Ubic 40L Women E-Dark Red Overview
Osprey Tempest 44 Black Coal Grey Osprey Tempest 44 Black Coal Grey
Osprey
Backpack Tempest 44 Black Coal Grey

  • Recommended price

    £165.21

    -28%

    £117.36

The Osprey Tempest 44 Black Coal Grey is a women's hiking backpack with a 44L capacity, featuring optimal ventilation, balanced weight distribution, and environmentally-friendly, durable materials.
Colour
  • Osprey Tempest 44 Black Coal Grey
Size
  • M-L
Deuter Backpack Aircontact Core 45+10 SL Grove Ivy Overview Deuter Backpack Aircontact Core 45+10 SL Grove Ivy Side
Deuter
Backpack Aircontact Core 45+10 SL Grove Ivy

  • Recommended price

    £234.81

    -29%

    £165.21

-
Colour
  • Deuter Backpack Aircontact Core 45+10 SL Graphite Black Overview
  • Deuter Backpack Aircontact Core 45+10 SL Grove Ivy Overview
  • Deuter Backpack Aircontact Core 45+10 SL Old Shale Ivy Overview
Deuter Backpack Aircontact Core 45+10 SL Graphite Black Overview Deuter Backpack Aircontact Core 45+10 SL Graphite Black Back
Deuter
Backpack Aircontact Core 45+10 SL Graphite Black

  • Recommended price

    £234.81

    -30%

    £163.47

-
Colour
  • Deuter Backpack Aircontact Core 45+10 SL Graphite Black Overview
  • Deuter Backpack Aircontact Core 45+10 SL Grove Ivy Overview
  • Deuter Backpack Aircontact Core 45+10 SL Old Shale Ivy Overview
Millet Backpack Seneca Air 40 Black Overview Millet Backpack Seneca Air 40 Black Back
Millet
Backpack Seneca Air 40 Black

  • Recommended price

    £200.01

    -30%

    £139.11
Colour
  • Millet Backpack Seneca Air 40 Black Overview
Osprey Stratos 44 Tunnel Vision Grey Osprey Stratos 44 Tunnel Vision Grey
Osprey
Backpack Stratos 44 Tunnel Vision Grey

  • Recommended price

    £191.31

    -20%

    £152.16

-
Colour
  • Osprey Stratos 44 Tunnel Vision Grey
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Osprey Backpack Talon 44 Black Coal Grey Overview Osprey Backpack Talon 44 Black Coal Grey Back
Osprey
Backpack Talon 44 Black Coal Grey

  • Recommended price

    £165.21

    -15%

    £139.98
Colour
  • Osprey Backpack Talon 44 Black Coal Grey Overview
Size
  • L-XL
Vaude Women's Asymmetric 38+8 Agave Vaude Women's Asymmetric 38+8 Agave
Vaude
Backpack Women's Asymmetric 38+8 Agave

  • Recommended price

    £173.91

    -25%

    £130.41


Colour
  • Vaude Women's Asymmetric 38+8 Agave
  • Vaude Backpack Women's Asymmetric 38+8 Dark Cherry Overview
Vaude Backpack Women's Asymmetric 38+8 Dark Cherry Overview Vaude Backpack Women's Asymmetric 38+8 Dark Cherry Back
Vaude
Backpack Women's Asymmetric 38+8 Dark Cherry

  • Recommended price

    £173.91

    -30%

    £120.84


Colour
  • Vaude Women's Asymmetric 38+8 Agave
  • Vaude Backpack Women's Asymmetric 38+8 Dark Cherry Overview
Vaude Backpack Asymmetric 42+8 Black Overview Vaude Backpack Asymmetric 42+8 Black Back
Vaude
Backpack Asymmetric 42+8 Black

  • Recommended price

    £173.91

    -30%

    £120.84
Colour
  • Vaude Backpack Asymmetric 42+8 Black Overview
  • Vaude Backpack Asymmetric 42+8 Eclipse Overview
Ortovox Backpack Traverse 40 Hot Orange Overview Ortovox Backpack Traverse 40 Hot Orange Side
Ortovox
Backpack Traverse 40 Hot Orange

  • Recommended price

    £165.21

    -20%

    £131.28
Colour
  • Ortovox Backpack Traverse 40 Black Raven Overview
  • Ortovox Backpack Traverse 40 Hot Orange Overview
Millet Backpack Peuterey 45+10 Red Overview Millet Backpack Peuterey 45+10 Red Side
Millet
Backpack Peuterey 45+10 Red

  • Recommended price

    £208.71

    -29%

    £147.81
Colour
  • Millet Backpack Peuterey 45+10 Dark Denim Overview
  • Millet Backpack Peuterey 45+10 Red Overview
  • Millet Backpack Peuterey 45+10 Red Overview
Lowe Alpine Backpack Sirac Plus 40 Deep Ink Overview Lowe Alpine Backpack Sirac Plus 40 Deep Ink Side
Lowe Alpine
Backpack Sirac Plus 40 Deep Ink

  • Recommended price

    £156.51

    -30%

    £108.66

-
Colour
  • Lowe Alpine Backpack Sirac Plus 40 Deep Ink Overview
Size
  • M-L
Picture Off Trax 30+10 Backpack Black Picture Off Trax 30+10 Backpack Black
Picture
Backpack Off Trax 30+10 Backpack Black

  • Recommended price

    £139.11

    -25%

    £103.44

The Picture Off Trax 30+10 Backpack Black is a versatile, eco-friendly hiking backpack with an expandable 30-40 litre capacity, ergonomic design, and high-tech features for optimal outdoor adventures.
Colour
  • Picture Off Trax 30+10 Backpack Black
  • Picture Backpack Off Trax 30+10 Backpack Tobacco Overview
Millet Backpack Peuterey 45+10 Red Overview Millet Backpack Peuterey 45+10 Red Side
Millet
Backpack Peuterey 45+10 Red

  • Recommended price

    £208.71

    -30%

    £145.20
Colour
  • Millet Backpack Peuterey 45+10 Dark Denim Overview
  • Millet Backpack Peuterey 45+10 Red Overview
  • Millet Backpack Peuterey 45+10 Red Overview
Millet Backpack Prolighter 38+10 Saphir Overview Millet Backpack Prolighter 38+10 Saphir Back
Millet
Backpack Prolighter 38+10 Saphir

  • Recommended price

    £173.91

    -30%

    £120.84
Colour
  • Millet Backpack Prolighter 38+10 Saphir Overview
Mammut Backpack Lithium 40 Women Marine Black Overview Mammut Backpack Lithium 40 Women Marine Black Back
Mammut
Backpack Lithium 40 Women Marine Black

  • Recommended price

    £165.21

    -25%

    £122.58

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
Ortovox Peak 45 Cengia Rossa Ortovox Peak 45 Cengia Rossa
Ortovox
Backpack Peak 45 Cengia Rossa

  • Recommended price

    £217.41

    -32%

    £146.94

-
Colour
  • Ortovox Peak 45 Cengia Rossa
  • Ortovox Peak 45 Deep Ocean
Ortovox Peak 45 Deep Ocean Ortovox Peak 45 Deep Ocean
Ortovox
Backpack Peak 45 Deep Ocean

  • Recommended price

    £217.41

    -30%

    £151.29

-
Colour
  • Ortovox Peak 45 Cengia Rossa
  • Ortovox Peak 45 Deep Ocean

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Versatile and Practical Backpacks

40-litre backpacks stand out for their versatility. They’re large enough to carry weather-appropriate clothing, camping gear, food, and water. Made with technical materials and equipped with innovations such as ergonomic carrying systems and ventilated back panels, they ensure a comfortable experience even during long walks.

To choose the right volume and model, don’t hesitate to consult our guide How to Choose Your Hiking Backpack for assistance in selecting the pack that best meets your needs.

Perfect for Hiking, Trekking, or Traveling

When planning a weekend in the great outdoors, whether for trekking or various adventures, having the right backpack is essential. A 40-litre model perfectly meets this need. Its intermediate capacity allows you to carry all the gear required for two or more days of exploration without compromising on comfort. Whether navigating rocky trails or snowy landscapes, this bag remains a reliable companion.

For trekking, a backpack of this size is ideal for packing warm, waterproof clothing, a headtorch, a first aid kit, and a compact sleeping bag. It also offers clever solutions for carrying specific gear. These thoughtful details, often overlooked at first glance, make all the difference for demanding activities where quick and easy access to equipment is vital. Additionally, modern designs incorporate ergonomic hip belts and shoulder straps to evenly distribute weight, reducing fatigue on challenging terrain.

They’re also practical for more ‘minimalist’ expeditions, where you pack only the essentials for longer treks without the need for a larger-volume model, gaining both convenience and weight savings.

Ultra-Light and Functional Hiking Backpacks

Another advantage of 40-litre backpacks is their lightweight design. Most modern models are crafted from durable yet lightweight materials, such as ripstop nylon. These innovations create a tough yet lightweight pack—an essential feature for outdoor activities where every gram counts.

Beyond being lighter, they offer exceptional functionality. Manufacturers have integrated smart systems to organize your gear efficiently without adding unnecessary bulk. For instance, some bags feature expandable side pockets for quick access to a water bottle or map, while others include dedicated compartments to separate clothing from technical gear. These innovations simplify life for hikers, allowing them to focus fully on their outdoor experience.

How Much Weight Can a 40-Litre Backpack Carry?

A backpack’s capacity is not just measured in litres but also in how many kilos it can hold without compromising the wearer’s comfort. For a 40-litre backpack, the total weight should remain within a certain limit to ensure a pleasant and pain-free hike. Generally, it’s recommended to carry no more than 20–25% of your body weight. For example, someone weighing 70 kg (11 stones) can carry around 15 kg (33 pounds) without overloading their back.

This weight includes essentials like spare clothing, a lightweight sleeping bag, two days’ worth of food, and approximately three litres of water. To distribute the load effectively, heavier items should be placed close to your back, while lighter or frequently used items can be stored at the top or sides. A well-designed carrying system with a properly fitted hip belt helps distribute weight across the hips, preventing unnecessary strain on your shoulders. This organization is crucial for conserving energy throughout the hike.

Comfortable Men’s Backpacks

40-litre backpacks designed for men include features tailored to their specific body shape. Men typically have longer torsos and broader shoulders, which influence the design of these packs. Men’s models often feature adjustable back lengths, wider shoulder straps, and reinforced hip belts to provide optimal support.

These packs are also built for demanding activities. Whether trekking in the mountains or skiing, their durability and ergonomic design ensure long-lasting comfort. Brands like Deuter and Osprey offer high-performance models that combine technical innovation with premium materials. Tested in extreme conditions, these backpacks deliver excellent stability and protect the hiker’s back from prolonged strain.

40-Litre Backpacks Designed for Women

Women have specific needs when it comes to backpacks due to their typically slimmer build and shorter torsos. Manufacturers have developed models that ensure the same performance while providing optimized comfort. Women’s backpacks feature curved shoulder straps that avoid pressure points on the chest and slimmer hip belts that fit perfectly to their hips.

These backpacks stand out not only for their ergonomic design but also for their stylish aesthetics and a variety of colours that appeal to many female hikers. Brands like Deuter, with its SL range, specialize in these models, offering a wide selection for women seeking a backpack that’s both high-performing and elegant.

Top Brands: Millet, Picture, Deuter, and More

In the 40-litre backpack market, several brands excel with their expertise and ability to meet the needs of outdoor enthusiasts. Millet is renowned for its technical models designed to withstand extreme conditions. Deuter stands out for its innovations in comfort and carrying systems. Lastly, Osprey offers modern, durable packs backed by a lifetime guarantee, reassuring even the most demanding adventurers.

Each brand provides a tailored solution to meet diverse needs, whether for mountain hikes, winter outings, or multi-day backpacking trips. Choosing the right model means carefully defining your expectations and testing different packs to find the one best suited to your body shape and activities.