Technical sheet

Unisex

Mammut Lithium 20L backpack

Name: Mammut Lithium 20L backpack
Brand: Mammut
SKU: 138676772
Price: 100.99 EUR
Availability: InStock
Rating: 4 (1 reviews)

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1 Reviews

28 Questions

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Long

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Features of Mammut Lithium 20L

Product description of Mammut Lithium 20L backpack

Description summary

Shift into high gear on the trail with the MAMMUT Lithium 20. Designed for fast and light hiking, this compact 20L pack is your ultimate mountain companion. Its CONTACT™ suspension system and 3D EVA foam back panel provide exceptional, ventilated comfort. Made sustainably from recycled, PFC-free materials, it´s packed with features: a removable hip belt with a smartphone pocket, an integrated rain cover, trekking pole carrier, and hydration system compatibility. Access essentials on the go with its smart pocket design. Speed and utility in the mountains can only have one supplier

Speed and utility in the mountains can only have one supplier.

The Mammut Lithium 20 backpack is designed for those who want to go light on the trail, always staring forward. Made of high-quality materials and with an impressive number of favourable features up its sleeve, this bag will always be your best option.

Made of high-resistance polyamide, the Lithium 20 also makes use of recycled materials to fulfill the Swiss brand´s sustainability goals. This commitment is endorsed by the Fair Wear Foundation, and the most ecologically conscious hikers will be delighted to know that the Lithium 20’s pigments and cover are 100% PFC-free.

The CONTACT™ suspension system gives you a smooth and light carrying experience thanks to its EVA padded handles and mesh finish. The 3D moulded back panel increases airflow across your back to keep your skin cool and your clothes dry. A removable hipbelt includes a convenient fold-out smartphone pocket.

To keep unpredictable weather away, the Lithium 20 includes an easy-to-use integrated raincover that will keep your belongings dry. Inside, a hydration reservoir compatible sleeve will keep you always on the move. Outside, dual stretch mesh pockets help you carry your essentials without issue. A trekking pole carrier keeps support at hand.

You like to shift up a gear when hiking. Lightweight and compact equipment is a must. The Lithium 20 is made mainly from recycled materials and the durable water-repellent treatment is PFC-free. The very lightweight and breathable shoulder padding makes it feel very comfortable to carry. Air channels in the 3D EVA foam provide good ventilation. The padded hip belt has a fold-out pocket for your smartphone. If you don’t need it, you can simply remove it. The same applies to the integrated rain cover. The backpack is compatible with hydration systems. The mesh side pockets allow access even when walking. With the Lithium 20, you’re traveling in the fast lane in the mountains.

Features:

- Detachable, padded hip belt
- Good back ventilation thanks to 3D EVA foam with air channels
- Trekking pole carrier
- Lateral compression straps
- Super-lightweight, highly breathable EVA shoulder padding
- Forward-pull hip belt adjustment
- Zip pocket with key pocket
- Large front zipper pocket
- Integrated, detachable rain cover
- 2 mesh side pockets
- Main zipper compartment
- Hydration system-compatible
- Zipper pocket on hip belt
- Fold-out cellphone pocket on the hip belt
- Made from over 89% recycled materials

Specifications:

- Actual volume: 20 l
- Length: 22 cm
- Height; 53 cm
- Width: 24 cm
- Weight: 740 g
- Rain cover: Yes
- Cut: Basic

Material:
- Base material: 100% Polyamide
- Main material: 100% Polyamide

Technology:

PFC Free DWR:
- Perfluorinated compounds (PFCs) are practically non-biodegradable. MAMMUT has set the strategic goal of phasing out all PFC-containing product treatments and replacing them with other high-performance alternatives.

Fair Wear:
- Mammut strives to ensure fair and safe working conditions in all factories making its products. To systematically improve working conditions throughout its supply chain, Mammut was the first outdoor brand to join the Fair Wear Foundation.

Specifications

Manual

Technical specifications of Mammut Lithium 20L

Capacity

20 L
Weight

740 g
Back panel ventilation

Yes
Rain cover included

Yes
Hydration system compatible

Yes
Hip belt pockets

Yes
Color

Blue
Capacity

11-20 L
Gender

Men
Gender

Women
Age

Adult
Recommended Use

Hiking
Structure

Frameless

Features of Mammut Lithium 20L

Color Blue

Color

Blue

Capacity 11-20 L

Capacity

11-20 L

Gender Men

Gender

Men

Women

Age Adult

Age

Adult

Recommended Use Hiking

Recommended Use

Hiking

Structure Frameless

Structure

Frameless

Key differentiators

Eco-conscious construction using mainly recycled materials, a PFC-free DWR treatment, and Bluesign® product certification.

Enhanced comfort and ventilation from a 3D EVA foam back panel with air channels and highly breathable EVA shoulder padding.

Hydration system compatibility and accessible mesh side pockets for on-the-go convenience during hikes.

Versatile features including a detachable padded hip belt with a smartphone pocket, an integrated rain cover, and trekking pole carrier.

Technology in Mammut Lithium 20L backpack

Energy rating

Warnings

/ 5

1 Reviews

What our customers are saying about Mammut Lithium 20L backpack

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Include AI Generated questions and answers

2026-09-09

Generated by AI and verified

What are the key features of the Mammut Lithium 20l Backpack?

Answer of Generated by AI and verified

The Mammut Lithium 20l is a lightweight hiking backpack featuring a CONTACT™ suspension system with a 3D EVA foam back panel for ventilated comfort. It includes an integrated rain cover, a trekking pole carrier, and is hydration system compatible. For organization, it has multiple pockets, including a large front zipper pocket, two mesh side pockets, and a detachable padded hip belt with a fold-out cellphone pocket.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Is the Mammut Lithium 20l backpack environmentally friendly?

Answer of Generated by AI and verified

Yes, this backpack is designed with sustainability in mind. It is made from recycled materials and features a PFC-free durable water repellent treatment. Mammut's commitment to sustainability is also endorsed by the Fair Wear Foundation.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Who is the Mammut Lithium 20l backpack designed for?

Answer of Generated by AI and verified

This unisex backpack is designed for adults who enjoy fast and light hiking. Its 20-liter capacity and lightweight construction make it ideal for day hikes where speed and mobility are priorities.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Is the Mammut Lithium 20l Backpack worth buying for hiking users?

Answer of Generated by AI and verified

The Mammut Lithium 20l Backpack is ideal for hiking users due to its lightweight design and eco-friendly materials. Its features, such as the CONTACT™ suspension system and integrated rain cover, make it a valuable choice for those who prioritize comfort and sustainability.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

What is the capacity of the Mammut Lithium 20l backpack?

Answer of Generated by AI and verified

The Mammut Lithium 20l backpack has a capacity and volume of 20 liters, making it suitable for day hikes and carrying essential gear.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Does the Mammut Lithium 20l come with a rain cover?

Answer of Generated by AI and verified

Yes, this backpack includes an integrated and detachable rain cover to help keep your belongings dry in wet weather.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

What material is the Mammut Lithium 20l backpack made from?

Answer of Generated by AI and verified

The base material of the Mammut Lithium 20l backpack is 100% Polyamide, chosen for its high resistance. The pack also incorporates recycled materials as part of the brand's sustainability efforts.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

What kind of suspension system does this backpack use?

Answer of Generated by AI and verified

This backpack is equipped with the CONTACT™ suspension system, which features super-lightweight, highly breathable EVA shoulder padding and a 3D EVA foam back panel with air channels for ventilation and comfort.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Is this backpack suitable for carrying trekking poles?

Answer of Generated by AI and verified

Yes, the Mammut Lithium 20l backpack is equipped with a trekking pole carrier, allowing you to securely attach your poles when they are not in use.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Can I use a hydration system with this backpack?

Answer of Generated by AI and verified

Yes, the Mammut Lithium 20l is compatible with hydration systems. It features a sleeve designed to hold a hydration reservoir, allowing for easy access to water while on the move.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Does the hip belt have a pocket for a smartphone?

Answer of Generated by AI and verified

Yes, the detachable padded hip belt includes a convenient fold-out cellphone pocket, providing easy access to your device while on the trail.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

How does the Mammut Lithium 20l compare to the Salewa Alp Mate 26l Backpack?

Answer of Generated by AI and verified

The Mammut Lithium 20l has a capacity of 20 liters, making it a more compact option for fast and light day hikes. In contrast, the Salewa Alp Mate 26l offers a larger capacity of 26 liters, which may be better suited for longer trips requiring more gear. Both are designed for hiking, but your choice depends on how much storage you need.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

What are the main features of the Mammut Lithium 20l Backpack?

Answer of Generated by AI and verified

The Mammut Lithium 20l is a lightweight hiking backpack designed for speed and utility. Key features include a CONTACT™ suspension system, a well-ventilated back panel with 3D EVA foam, an integrated and detachable rain cover, and compatibility with hydration systems. It also has a detachable padded hip belt with a fold-out pocket for a smartphone, a trekking pole carrier, and multiple pockets for organization.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Is the Mammut Lithium 20l backpack made from sustainable materials?

Answer of Generated by AI and verified

Yes, this backpack is designed with sustainability in mind. It is made mainly from recycled polyamide and features a PFC-free durable water-repellent treatment, reducing its environmental impact.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Does this backpack come with a rain cover?

Answer of Generated by AI and verified

Yes, the Mammut Lithium 20l Backpack includes an integrated rain cover. For added flexibility, the rain cover is also detachable.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Is the Mammut Lithium 20l Backpack worth buying for hiking users?

Answer of Generated by AI and verified

The Mammut Lithium 20l Backpack is ideal for hiking users due to its lightweight design, eco-friendly materials, and multiple organizational features.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

What is the capacity of the Mammut Lithium 20l Backpack?

Answer of Generated by AI and verified

This backpack has a capacity and actual volume of 20 liters, making it a compact choice for day hikes and fast-paced mountain activities.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

What material is the Mammut Lithium 20l made of?

Answer of Generated by AI and verified

The main material used for this backpack is polyamide. It also features a PFC-free durable water-repellent treatment for weather resistance.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

How is the back of this backpack ventilated?

Answer of Generated by AI and verified

The Mammut Lithium 20l features a back panel made of 3D EVA foam with integrated air channels. This design, combined with the super-lightweight, highly breathable EVA shoulder padding, provides good back ventilation for enhanced comfort during strenuous activity.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Can I use a hydration system with this backpack?

Answer of Generated by AI and verified

Yes, the Mammut Lithium 20l Backpack is compatible with hydration systems, allowing you to stay hydrated on the go. It also features two mesh side pockets that are accessible while walking.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

What activities is the Mammut Lithium 20l best suited for?

Answer of Generated by AI and verified

This backpack is primarily designed for hiking, especially fast and light excursions. Its lightweight construction, 20-liter capacity, and features like the trekking pole carrier and hydration system compatibility make it an excellent companion for day trips in the mountains.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Can I carry a smartphone securely in this backpack?

Answer of Generated by AI and verified

Yes, the padded hip belt includes a convenient fold-out pocket specifically designed to hold a smartphone, allowing for secure storage and easy access while you're on the move.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Can I attach trekking poles to this backpack?

Answer of Generated by AI and verified

Yes, the Mammut Lithium 20l is equipped with a trekking pole carrier, allowing you to securely attach your poles when they are not in use.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

What is the difference between the Mammut Lithium 20l and the Salewa Ultra Train 18l?

Answer of Generated by AI and verified

The Mammut Lithium 20l has a slightly larger capacity at 20 liters compared to the Salewa Ultra Train's 18 liters. The Lithium 20l also comes with an integrated rain cover and a detachable padded hip belt, features not specified for the Salewa model.

* Generated by AI based on customer and product data

2026-06-27

Generated by AI and verified

Is the Mammut Lithium 20l backpack environmentally friendly?

Answer of Generated by AI and verified

Yes, the Mammut Lithium 20l backpack is designed with sustainability in mind. It is made mainly from recycled materials, and its durable water-repellent treatment is PFC-free, reducing its environmental impact.

* Generated by AI based on customer and product data

2026-06-27

Generated by AI and verified

What are the main organizational features of the Mammut Lithium 20l backpack?

Answer of Generated by AI and verified

The Mammut Lithium 20l backpack offers several organizational features for your gear. It includes a large front zipper pocket, two mesh side pockets that are accessible while walking, a zip pocket on the hip belt, and an additional zip pocket with a key pocket. It also features a fold-out cellphone pocket on the hip belt for secure and easy access.

* Generated by AI based on customer and product data

2026-06-27

Generated by AI and verified

Is the Mammut Lithium 20l backpack hydration compatible?

Answer of Generated by AI and verified

Yes, the Mammut Lithium 20l backpack is compatible with hydration systems, allowing you to easily integrate a hydration bladder for convenient access to water while on the move.

* Generated by AI based on customer and product data

2026-06-27

Generated by AI and verified

Is this backpack suitable for rainy conditions?

Answer of Generated by AI and verified

Yes, this backpack is equipped for wet weather. It includes an integrated and detachable rain cover to protect your belongings from rain. Additionally, the main fabric has a durable water-repellent (PFC-free) treatment.

* Generated by AI based on customer and product data

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Frequently bought together

Best sellers

Use cases

Fast-Paced Day Hiking 90% Fit

With its 20L capacity and lightweight, frameless structure, this pack is ideal for carrying essentials on strenuous day hikes. The 3D EVA foam back panel with air channels provides excellent ventilation, ensuring comfort during high-exertion activities.

20 L capacity,Frameless structure,Back panel with 3D EVA foam and ventilation,Hydration system compatible

Varied-Weather Mountain Trails 90% Fit

This pack is a reliable upgrade for mountain trails where weather can change unexpectedly. It includes an integrated, detachable rain cover and is made from durable polyamide with a PFC-free water-repellent treatment to protect your gear.

Integrated, detachable rain cover,Durable polyamide material,PFC-free durable water-repellent (DWR) treatment

Organized Trail Exploration 80% Fit

For hikers who value organization, this pack offers multiple storage options, including mesh side pockets, a large front zipper pocket, and a fold-out cellphone pocket on the hip belt. These features allow for easy access to essentials like maps, snacks, and devices without stopping.

Hip belt with fold-out cellphone pocket,Large front zipper pocket,Mesh side pockets,Trekking pole carrier

Outdoor Adventures 85% Fit

This backpack is a solid choice for the environmentally aware hiker. It is constructed mainly from recycled materials, features a PFC-free water repellent finish, and is a bluesign® certified product, reflecting a commitment to sustainable manufacturing.

Made mainly from recycled materials,PFC-free DWR treatment,bluesign® product

Best for

Best for the Committed Hiker

This pack offers a great all-around feature set, including a ventilated back panel, hydration compatibility, and multiple pockets, making it a reliable upgrade for your regular trail outings.

Intended use: hiking, Back panel ventilation: Yes, Hydration compatible: yes

Ideal for Adventurers

Constructed mainly from recycled materials with a PFC-free water-repellent treatment and bluesign® certification, this backpack aligns with a commitment to protecting the outdoors.

Great for Organized Explorers

With numerous compartments including a large front zipper pocket, mesh side pockets, and a fold-out cellphone pocket on the hip belt, this pack keeps your essentials organized and accessible.

A Solid Choice for Family Outings

Its 20L capacity is perfect for carrying essentials for a day, while features like an included rain cover and durable polyamide construction ensure it can handle varied conditions and use.

Capacity: 20 L, Rain cover included: yes, Material: polyamide

Benefits

FunctionalKeep Your Gear Neatly Arranged

This backpack helps you stay organized on the trail with multiple storage options. It features pockets on the hip belt for quick-access items, ensuring your essentials are sorted and easy to find when you need them.

Hip belt pockets: yes

FunctionalHike Comfortably with Enhanced Ventilation

Designed to support an active lifestyle, this backpack features a back panel made of 3D EVA foam with air channels for good ventilation. This helps keep you comfortable during fast and light hiking.

Back panel: 3D EVA foam

Back panel ventilation: Yes

Intended use: hiking

FunctionalProtect Your Gear in Changing Weather

Constructed from durable polyamide, this backpack is prepared for unpredictable weather. It includes an integrated, detachable rain cover to help keep your belongings dry during downpours.

Rain cover included: yes

Ideal buyer profiles

The Day Hiker

This individual prioritizes sustainability and environmental impact in their gear choices. They enjoy fast and light day hikes and need a reliable pack that aligns with their values without sacrificing performance or features.

This backpack is an excellent choice due to its construction from mainly recycled materials and its PFC-free water-repellent treatment. The lightweight, frameless design, 20L capacity, and features like hydration system compatibility and breathable shoulder padding support an active day on the trail, while multiple pockets keep gear organized.

The Organized Adventurer

This hiker values meticulous organization and quick access to their gear. They prefer a backpack with dedicated compartments for everything from keys and a phone to hydration systems and trekking poles, ensuring a smooth and efficient outdoor experience.

With a large front zipper pocket, mesh side pockets, a zip pocket with a key holder, and a fold-out cellphone pocket on the hip belt, this pack offers superior organization. The inclusion of a trekking pole carrier and an integrated rain cover means they are prepared for varied terrain and weather conditions.

The Family Outing Leader

This person often leads family hikes and needs a versatile, comfortable, and easy-to-use backpack for carrying essentials for the group. They look for practical features that add convenience and safety, like easy-to-access pockets and weather protection.

The padded hip belt, lightweight EVA shoulder padding, and ventilated 3D EVA foam back panel provide comfort for all-day wear. Features like the included rain cover, hydration compatibility, and multiple pockets make it easy to carry snacks, water, and extra layers for the family.

Competitive features

When choosing a daypack for outdoor adventures, key features like capacity, comfort, and specialized compartments make all the difference. Our analysis focuses on features derived from the product descriptions to help you find the right fit for your needs.

Where it excels

The Mammut Lithium 20l is specifically designed for 'fast and light hiking,' featuring a CONTACT™ suspension system and a 3D EVA foam back panel for enhanced ventilation and comfort on the trail. It comes equipped with hiking-specific features right out of the box, including an integrated rain cover, a trekking pole carrier, and a removable hip belt with a smartphone pocket, offering excellent utility for mountain excursions. Constructed from recycled materials with a PFC-free water-repellent treatment, this backpack is a strong choice for the environmentally conscious hiker.

Consider alternatives if...

For users whose primary need is urban commuting or everyday carry rather than technical hiking, a model like the Osprey Arcane Tote Backpack might offer a more suitable feature set and aesthetic.

Verdict

The Mammut Lithium 20l Backpack is an excellent choice for dedicated day hikers who prioritize speed, low weight, and specialized features. Its ventilated back panel, hydration compatibility, and integrated rain cover make it a highly functional pack for mountain trails. While it may not have the largest capacity, its thoughtful design and sustainable materials provide significant value for its intended use. For those needing more space or a less technical pack for urban use, other options may be more suitable.

Specs comparison

	Mammut Lithium 20L backpack	Mammut Seon Transporter 15l Backpack	Mammut Lithium 30l Backpack	Mammut Nirvana 22l Backpack	Mammut Ducan 22l Woman Backpack	Mammut Alto 18l Backpack
Material	polyamide	polyamide	polyamide	synthetic	synthetic	polyester
Capacity	20.0 L	15 L	30 L	21-30 L	22.0 L	18.0 L
Hydration Compatible	true	false	true	true	true	-
Intended Use	hiking	hiking	hiking	hiking	hiking, everyday_outdoor	hiking
Volume	20 L	15 L	30 L	22 L	22 L	18 L
Back Panel	3D EVA foam	padded and ventilated	3D EVA foam	full 270° rear zipper offering complete access to the main compartment	ventilated	-
Back Panel Ventilation	Yes	Yes	Yes	-	Yes	-
Hydration System Compatible	Yes	No	Yes	Yes	Yes	-

Specs vs competitors

	Mammut Lithium 20L backpack	Marsupio Pro Level Sky 30l Backpack	Salewa Ultra Train 18l Backpack	Ortovox Traverse Light 20l Backpack	Millet Gravic 20l Backpack	Osprey Daylite-20l Backpack
Material	polyamide	Nylon-Hd-Ripstop. Mar-Tex 600 Pu	synthetic	polyamide	recycled_materials, polyester	recycled_materials, polyester
Capacity	20.0 L	30 L	18 L	20.0 L	20.0 L	11-20 L
Hydration Compatible	true	true	true	true	true	true
Intended Use	hiking	hiking	hiking	hiking	hiking	hiking
Volume	20 L	30 L	18 L	20 L	20 L	20 L
Back Panel	3D EVA foam	durable, padded back system with two-layer Eva foam construction	Dry Back Contact	Airvent Back System	Yes	ventilated spacermesh backpanel
Back Panel Ventilation	Yes	two-layer Eva foam construction	Dry Back Contact	Airvent Back System	Yes	ventilated
Hydration System Compatible	Yes	Yes	Yes	Yes	true	hydration reservoir