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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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Ortovox Backpack Traverse 40 Black Raven Overview Ortovox Backpack Traverse 40 Black Raven Keypoints Sale
Ortovox
Backpack Traverse 40 Black Raven

  • Recommended price

    £170.91

    -30%

    £119.61
Colour
  • Ortovox Backpack Traverse 40 Black Raven Overview
Millet Backpack Peuterey 45+10 Dark Denim Overview Millet Backpack Peuterey 45+10 Dark Denim Keypoints Sale
Millet
Backpack Peuterey 45+10 Dark Denim

  • Recommended price

    £215.91

    -30%

    £151.11
Colour
  • Millet Backpack Peuterey 45+10 Dark Denim Overview
  • Millet Backpack Peuterey 45+10 Red Overview
Picture Backpack Off Trax 30+10 Backpack Black Overview Picture Backpack Off Trax 30+10 Backpack Black Back
Picture
Backpack Off Trax 30+10 Backpack Black
  • £143.91

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 Backpack Off Trax 30+10 Backpack Black Overview
  • Picture Backpack Off Trax 30+10 Backpack Tobacco Overview
Millet Backpack Ubic 40L E-Dark Blue Overview Millet Backpack Ubic 40L E-Dark Blue Keypoints Sale
Millet
Backpack Ubic 40L E-Dark Blue

  • Recommended price

    £170.91

    -30%

    £119.61
Colour
  • Millet Backpack Ubic 40L E-Dark Blue Overview
Vaude Backpack Asymmetric 42+8 Black Overview Vaude Backpack Asymmetric 42+8 Black Back Sale
Vaude
Backpack Asymmetric 42+8 Black

  • Recommended price

    £179.91

    -35%

    £116.91
Colour
  • Vaude Backpack Asymmetric 42+8 Black Overview
Osprey Backpack Stratos 44 Tunnel Vision Grey Overview Osprey Backpack Stratos 44 Tunnel Vision Grey Back Sale
Osprey
Backpack Stratos 44 Tunnel Vision Grey

  • Recommended price

    £197.91

    -25%

    £148.41

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Colour
  • Osprey Backpack Stratos 44 Cetacean Blue Overview
  • Osprey Backpack Stratos 44 Tunnel Vision Grey Overview
Lowe Alpine Backpack Airzone Trail Camino Nd35:40 Anthracite Graphene Overview Lowe Alpine Backpack Airzone Trail Camino Nd35:40 Anthracite Graphene Sale
Lowe Alpine
Backpack Airzone Trail Camino Nd35:40 Anthracite Graphene

  • Recommended price

    £161.91

    -35%

    £105.21

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Colour
  • Lowe Alpine Backpack Airzone Trail Camino Nd35:40 Anthracite Graphene Overview
Size
  • S
Sale
Mammut Backpack Lithium 40 Black Overview Mammut Backpack Lithium 40 Black Side Sale
Mammut
Backpack Lithium 40 Black

  • Recommended price

    £170.91

    -30%

    £119.61

-
Colour
  • Mammut Backpack Lithium 40 Black Overview
Osprey Backpack Talon 44 Black Coal Grey Overview Osprey Backpack Talon 44 Black Coal Grey Sale
Osprey
Backpack Talon 44 Black Coal Grey

  • Recommended price

    £170.91

    -25%

    £127.71
Colour
  • Osprey Backpack Talon 44 Black Coal Grey Overview
Size
  • L-XL
Millet Backpack Ubic 40L Women E-Black Dark Blue Face Millet Backpack Ubic 40L Women E-Black Dark Blue Behind Sale
Millet
Backpack Ubic 40L Women E-Black Dark Blue

  • Recommended price

    £170.91

    -30%

    £119.61

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Colour
  • Millet Backpack Ubic 40L Women E-Black Dark Blue Face
Vaude Backpack Women's Asymmetric 38+8 Eclipse Overview Vaude Backpack Women's Asymmetric 38+8 Eclipse Back Sale
Vaude
Backpack Women's Asymmetric 38+8 Eclipse

  • Recommended price

    £179.91

    -30%

    £125.91


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  • Vaude Backpack Women's Asymmetric 38+8 Eclipse Overview
Blue Ice Backpack Firecrest 38L Red Clay Overview Blue Ice Backpack Firecrest 38L Red Clay
Blue Ice
Backpack Firecrest 38L Red Clay

  • Recommended price

    £161.91

    -25%

    £121.41

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Colour
  • Blue Ice Backpack Firecrest 38L Dark Slate Overview
  • Blue Ice Backpack Firecrest 38L Red Clay Overview
Size
  • S-M (42-48)
  • M-L (46-52)
Blue Ice Backpack Firecrest 38L Dark Slate Overview Blue Ice Backpack Firecrest 38L Dark Slate Back
Blue Ice
Backpack Firecrest 38L Dark Slate
  • £162.00

-
Colour
  • Blue Ice Backpack Firecrest 38L Dark Slate Overview
  • Blue Ice Backpack Firecrest 38L Red Clay Overview
Size
  • S-M (42-48)
  • M-L (46-52)
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

    £242.91

    -25%

    £181.71

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  • Deuter Backpack Aircontact Core 45+10 SL Graphite Black Overview
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Millet Backpack Prolighter 38+10 Saphir Overview Millet Backpack Prolighter 38+10 Saphir Back Sale
Millet
Backpack Prolighter 38+10 Saphir

  • Recommended price

    £179.91

    -30%

    £125.91
Colour
  • Millet Backpack Prolighter 38+10 Saphir Overview
Ortovox Backpack Haute Route 38 S Black Steel Overview Ortovox Backpack Haute Route 38 S Black Steel Back More reductions
Ortovox
Backpack Haute Route 38 S Black Steel

  • Recommended price

    £179.91

    -35%

    £116.91
Colour
  • Ortovox Backpack Haute Route 38 S Black Steel Overview
RAB Backpack Exion 45 Nd Orion Blue Keypoints RAB Backpack Exion 45 Nd Orion Blue Back Sale
RAB
Backpack Exion 45 Nd Orion Blue

  • Recommended price

    £215.91

    -30%

    £151.11

Perfect for long hikes, the RAB Exion 45 Nd Orion Blue women's backpack carries all your gear.
Colour
  • RAB Backpack Exion 45 Nd Orion Blue Keypoints
Osprey Backpack Stratos 36 Smoke Grey Overview Osprey Backpack Stratos 36 Smoke Grey Keypoints More reductions
Osprey
Backpack Stratos 36 Smoke Grey

  • Recommended price

    £179.91

    -30%

    £125.91

-
Colour
  • Osprey Backpack Stratos 36 Smoke Grey Overview
  • Osprey Backpack Stratos 36 Tunnel Vision Grey Overview
Osprey Backpack Stratos 36 Tunnel Vision Grey Overview Osprey Backpack Stratos 36 Tunnel Vision Grey Back Sale
Osprey
Backpack Stratos 36 Tunnel Vision Grey

  • Recommended price

    £179.91

    -25%

    £134.91

-
Colour
  • Osprey Backpack Stratos 36 Smoke Grey Overview
  • Osprey Backpack Stratos 36 Tunnel Vision Grey Overview
Ortovox Backpack Haute Route 40 Black Raven Overview Ortovox Backpack Haute Route 40 Black Raven Back Sale
Ortovox
Backpack Haute Route 40 Black Raven

  • Recommended price

    £179.91

    -25%

    £134.91

The Ortovox Haute Route 40 Desert Orange technical backpack is a practical way to take your equipment to the mountains. It is ideal for ski, snowboard and ski touring.

Colour
  • Ortovox Backpack Haute Route 40 Black Raven Overview
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
  • £143.91
Colour
  • Picture Backpack Off Trax 30+10 Backpack Black Overview
  • Picture Backpack Off Trax 30+10 Backpack Tobacco Overview
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Check out their reviews
Osprey Backpack Stratos 44 Cetacean Blue Overview Osprey Backpack Stratos 44 Cetacean Blue Back Sale
Osprey
Backpack Stratos 44 Cetacean Blue

  • Recommended price

    £197.91

    -25%

    £148.41

-
Colour
  • Osprey Backpack Stratos 44 Cetacean Blue Overview
  • Osprey Backpack Stratos 44 Tunnel Vision Grey Overview
Salewa Backpack Alp Mate 36 Onyx Overview Salewa Backpack Alp Mate 36 Onyx Back Sale
Salewa
Backpack Alp Mate 36 Onyx

  • Recommended price

    £116.91

    -40%

    £70.11

-
Colour
  • Salewa Backpack Alp Mate 36 Onyx Overview
RAB Backpack Exion 38 Army Overview RAB Backpack Exion 38 Army Keypoints More reductions
RAB
Backpack Exion 38 Army

  • Recommended price

    £198.00

    -29%

    £139.41
Colour
  • RAB Backpack Exion 38 Army Overview
Millet Backpack Peuterey 45+10 Red Overview Millet Backpack Peuterey 45+10 Red Keypoints Sale
Millet
Backpack Peuterey 45+10 Red

  • Recommended price

    £215.91

    -30%

    £151.11
Colour
  • Millet Backpack Peuterey 45+10 Dark Denim Overview
  • Millet Backpack Peuterey 45+10 Red Overview
Millet Backpack Prolighter 30+10 Women Saphir Overview Millet Backpack Prolighter 30+10 Women Saphir Back Sale
Millet
Backpack Prolighter 30+10 Women Saphir

  • Recommended price

    £152.91

    -30%

    £107.01

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 Backpack Prolighter 30+10 Women Saphir Overview
Lowe Alpine Backpack Sirac Plus Nd40 Ebony Overview Lowe Alpine Backpack Sirac Plus Nd40 Ebony Side More reductions
Lowe Alpine
Backpack Sirac Plus Nd40 Ebony

  • Recommended price

    £161.91

    -40%

    £97.11

Lowe Alpine's Sirac Plus Nd40 women's hiking backpack, waterproof with a volume of 40L, is the ideal companion for hiking and bivouac activities, with stretch mesh side pockets, an Air Conour X carrying system, and an eco-responsible design with the use of partially recycled materials.
Colour
  • Lowe Alpine Backpack Sirac Plus Nd40 Ebony Overview

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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.