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Mammut

Mammut Masao jacket

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Features of Mammut Masao

Product description of Mammut Masao jacket

Description summary

Conquer any element with the MAMMUT Masao Jacket. Engineered with Mammut Drytechnology™ Pro, this robust, waterproof, and windproof jacket offers ultimate protection. Its helmet-compatible hood with reinforced shield ensures optimal visibility, while the 2-way front zipper and underarm ventilation provide convenient control. Designed for climbers, it features harness-compatible pockets and an adjustable hem and cuffs for a secure fit. Made with sustainable Bluesign® materials and PFC-free DWR, and produced under Fair Wear conditions, the Masao Jacket is your reliable partner for adventure

Features:

- Chest Pocket With Water Repellent Zipper
- Internal Zipper Pocket
- The Drawstring On The Hem Can Be Adjusted With One Hand Using A Cord That Can Be Stowed On The Inside
- Functional ´Underarm Gusset´ For Optimum Freedom Of Movement
- Glove-Compatible, Adjustable Cuffs With High-Quality Hook-And-Loop Fasteners
- Stormproof, Vertically And Horizontally Adjustable Helmet-Compatible Hood With Reinforced Shield For An Optimum Field Of Vision At All Times And Easy Operation When Wearing Gloves
- Robust, Water-Repellent Ykk Vislon® 2-Way Front Zipper
- 2 Climbing Harness-Compatible Front Pockets With Waterproof Zippers
- Underarm Ventilation With Water-Repellent Zipper


Sustainability:

Bluesign® Product:
- A Bluesign® Product Is Made With At Least 90% / 30% Bluesign® Approved Materials / Accessories. The Designation Guarantees The Highest Level Of Consumer Assurance, Responsible Use Of Resources And Minimum Impact On Humans And The Environment.

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:

- Weight: 540 G
- Main Material - Backing: 100% Polyamide
- Main Material - Face: 100% Polyamide
- Main Material - Membrane: 100% Polyurethane


Technologies:

Mammut Drytechnology™ Pro:
- Mammut Drytechnology™ Pro Products Are Highly Durable, Water- And Windproof (40 Denier Polyamide Outer Fabric, Min. Water Column Rating 20,000 Mm).


Care:

- Do Not Use Chlorine-Based Bleach
- Do Not Dry Clean Or Use Solvents To Remove Stains
- Max. Ironing Temperature (110° C) Take Care When Steam Ironing
- Do Not Iron On Prints And Decorative Elements
- Do Not Tumble Dry
- Machine Wash On Wool/Delicates Cycle (Max. 30° C)

Specifications

Manual

Technical specifications of Mammut Masao

  • Waterproof Membrane

    Mammut Drytechnology™ Pro

  • Durable water repellent

    Yes

  • Underarm ventilation

    Yes

  • Helmet compatibility

    Yes

  • Weight

    540 G

  • Hood

    With Hood

  • Color

    Red

  • Features

    Waterproof

  • Features

    Windproof

  • Gender

    Men

  • Kind of Jacket

    Hardshell

Features of Mammut Masao

Hood With Hood

Hood

With Hood

Color Red

Color

Red

Features Waterproof

Features

Waterproof

Windproof

Windproof

Gender Men

Gender

Men

Kind of Jacket Hardshell

Kind of Jacket

Hardshell

Key differentiators

Constructed with Bluesign® approved materials and a PFC-free DWR treatment.

Designed with climbing harness-compatible front pockets and underarm ventilation for active use.

Features a waterproof and windproof Mammut Drytechnology™ Pro membrane for advanced weather protection.

Features glove-compatible, adjustable cuffs and a one-hand adjustable hem drawstring.

Includes a stormproof, vertically and horizontally adjustable, helmet-compatible hood with a reinforced shield.

Technology in Mammut Masao jacket

Energy rating

Warnings

/ 5

1 Reviews

What our customers are saying about Mammut Masao jacket

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The question has already been answered, thank you very much for trying to help another customer. We will count on you for future questions.

Include AI Generated questions and answers

2026-09-26

Generated by AI and verified

Mammut Masao jacket

Is the Mammut Masao Jacket suitable for climbing?

Answer of Generated by AI and verified

Yes, the Mammut Masao Jacket is designed with climbers in mind. It features climbing harness-compatible front pockets, a functional underarm gusset for optimal freedom of movement, and a helmet-compatible hood, making it a great choice for your climbing adventures.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

What are the sustainability features of the Mammut Masao Jacket?

Answer of Generated by AI and verified

We are committed to responsible manufacturing. The Mammut Masao Jacket is a Bluesign® PRODUCT, made with at least 90% Bluesign® approved materials. It also features a PFC-free durable water-repellent (DWR) treatment. Additionally, Mammut works with Fair Wear to ensure fair and safe working conditions in the factories where it's made.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

What kind of pockets does the Masao Jacket have?

Answer of Generated by AI and verified

The jacket is equipped with two climbing harness-compatible front pockets with waterproof zippers, a chest pocket with a water-repellent zipper, and an internal zipper pocket for securing smaller items.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

What technology is used for waterproofing in the Masao Jacket?

Answer of Generated by AI and verified

The Mammut Masao Jacket utilizes Mammut Drytechnology™ Pro. This is a robust, waterproof, and windproof membrane designed to provide reliable protection from the elements.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

Is the hood on the Mammut Masao Jacket compatible with a helmet?

Answer of Generated by AI and verified

Yes, the jacket features a stormproof, vertically and horizontally adjustable hood that is designed to be compatible with a helmet. It also has a reinforced shield to ensure an optimal field of vision, even when wearing gloves.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

What type of jacket is the Mammut Masao?

Answer of Generated by AI and verified

The Mammut Masao is classified as a hardshell jacket. This means it is designed to be a durable, waterproof, and windproof outer layer for protection against harsh weather conditions.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

What is the closure type for this jacket?

Answer of Generated by AI and verified

This jacket uses a robust, water-repellent YKK Vislon® 2-way front zipper for its main closure.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

Can I adjust the fit of the Mammut Masao Jacket?

Answer of Generated by AI and verified

Yes, you can customize the fit for comfort and protection. The jacket has a drawstring on the hem that can be adjusted with one hand, and the cuffs are glove-compatible and adjustable with high-quality hook-and-loop fasteners.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

Does this jacket offer ventilation for when I'm active?

Answer of Generated by AI and verified

Yes, the Mammut Masao Jacket is equipped with underarm ventilation featuring water-repellent zippers. This allows you to regulate your temperature during strenuous activities.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

Is this jacket designed for men?

Answer of Generated by AI and verified

Yes, the Mammut Masao Jacket is specifically designed for men, as indicated by its product attributes.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

Are the pockets on the Masao jacket accessible while wearing a climbing harness?

Answer of Generated by AI and verified

Yes, the two front pockets are specifically designed to be compatible with a climbing harness, ensuring you can access your essentials without interference.

* Generated by AI based on customer and product data

2026-09-26

Generated by AI and verified

Mammut Masao jacket

How does the Mammut Masao Jacket compare to the Mammut Ultimate Vii Gore-tex Infinium™ Softshell Jacket?

Answer of Generated by AI and verified

The main difference lies in their construction and material. The Masao is a hardshell jacket featuring the waterproof Mammut Drytechnology™ Pro membrane. In contrast, the Mammut Ultimate Vii is a softshell jacket made from 100% recycled polyester with Gore-tex Infinium™ technology, which focuses more on windproofing and breathability rather than full waterproofing. The Masao is designed for robust weather protection, while the Ultimate Vii offers flexibility for high-output activities.

* Generated by AI based on customer and product data

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Frequently bought together
Best sellers

Use cases

Alpine Mountaineering & Climbing 100% Fit

Engineered as a hardshell, this jacket provides robust protection against harsh alpine weather. The advanced Mammut Drytechnology™ Pro membrane ensures you stay dry during demanding ascents without sacrificing breathability.

Hardshell construction,Mammut Drytechnology™ Pro waterproof membrane

High-Exposure Trekking & Hiking 90% Fit

For treks in unpredictable mountain environments, this jacket offers high-performance weather protection. The synthetic hardshell material is durable, and the waterproof membrane is critical for staying comfortable and safe when exposed to rain or wet conditions.

Mammut Drytechnology™ Pro waterproof membrane,Hardshell construction,Synthetic outer material

Backcountry Skiing & Ski Touring 80% Fit

As a protective outer layer, this hardshell excels in backcountry ski scenarios. It effectively blocks wind and snow on ascents and descents, while the breathable waterproof membrane helps manage moisture during high-exertion activity.

Hardshell construction,Mammut Drytechnology™ Pro waterproof membrane

Year-Round Foul Weather Protection 70% Fit

This jacket serves as a premium, reliable outer layer for any activity where staying dry is non-negotiable. From wet-weather commuting to general outdoor pursuits, the hardshell design and advanced waterproof membrane deliver performance.

Mammut Drytechnology™ Pro waterproof membrane,Synthetic outer material,Zipper closure

Best for

Ideal for Alpine Pursuits

This hardshell jacket provides robust weather protection with its Mammut Drytechnology™ Pro waterproof membrane, making it a reliable choice for challenging mountain environments.

Based on: kind_of_jacket: Hardshell, Waterproof membrane: Mammut Drytechnology™ Pro, Top Benefit: Weather Resistance & Durability

Best for Serious Climbers

Engineered as a hardshell for active use, this jacket offers the durability and weather resistance needed to handle demanding climbs and unpredictable conditions.

Based on: kind_of_jacket: Hardshell, Top Benefit: Active Lifestyle Compatibility, Top Benefit: Weather Resistance & Durability

Your Go-To for Long-Distance Treks

With its durable synthetic construction and high-performance Mammut Drytechnology™ Pro waterproof membrane, this jacket is built to withstand the rigors of a long-distance trail.

Based on: kind_of_jacket: Hardshell, Outer material type: Synthetic, Waterproof membrane: Mammut Drytechnology™ Pro, Top Benefit: Weather Resistance & Durability

Benefits

FunctionalReliable Protection from the Elements

This hardshell jacket is engineered to keep you dry, featuring Mammut's proprietary Drytechnology™ Pro waterproof membrane. As a hardshell, it provides a durable outer layer against wind and rain, making it a dependable choice for challenging weather conditions.

Kind of jacket: Hardshell

Waterproof membrane: Mammut Drytechnology™ Pro

Ideal buyer profiles

The Mountaineer

This individual engages in serious mountain sports, from alpine climbing to ski touring, and requires gear that offers uncompromising protection against severe weather. They prioritize durability, weatherproofing, and functionality that works with other equipment like helmets and harnesses.

The Mammut Masao Jacket is a hardshell designed for exactly these conditions. Its Mammut Drytechnology™ Pro membrane provides robust waterproof protection, a critical feature when exposed to unpredictable alpine weather. As a hardshell, it's built for durability against rock and ice, making it a reliable outer layer for demanding ascents.

The Climber

Whether tackling multi-pitch rock routes, ice climbing, or general alpinism, the climber needs outerwear that moves with them without restriction while providing a barrier against wind and precipitation. They look for tough, reliable gear that won't fail in a vertical environment.

This jacket's hardshell construction offers the abrasion resistance needed when in contact with rock and ice. The primary benefit for the climber is the dependable weather protection from the Mammut Drytechnology™ Pro membrane, ensuring they stay dry and focused during changing conditions on the wall or route.

The Thru-Hiker

Embarking on long-distance treks, the thru-hiker lives in their gear for weeks or months at a time. They need a jacket that is absolutely dependable for rain protection, durable enough to withstand constant use, and versatile for a wide range of conditions encountered on the trail.

For the thru-hiker, the Masao Jacket's key feature is the Mammut Drytechnology™ Pro membrane, which offers the high level of waterproofing necessary for multi-day exposure to rain. Its hardshell nature provides the durability required to handle the wear and tear of a long trail and constant pack abrasion, ensuring it remains a reliable piece of rain gear from start to finish.

Competitive features

The Mammut Masao Jacket Men is a technical hard shell designed for climbing and alpine activities. It prioritizes weather protection and durability with its waterproof and windproof Mammut Drytechnology™ Pro fabric. Unlike insulated alternatives such as the Trespass Hawthorne or Mammut Broad Peak jackets, the Masao is a non-insulated shell, focusing on providing a barrier against the elements while allowing for a versatile layering system underneath. Its feature set is specifically tailored for climbers.

Where it excels

Engineered for climbing with a helmet-compatible hood, harness-compatible pockets, and an underarm gusset for optimal freedom of movement. Provides robust weather protection, featuring waterproof and windproof Mammut Drytechnology™ Pro fabric and a PFC-free DWR finish. Offers excellent ventilation control with a 2-way front zipper and underarm zippers, allowing for temperature regulation during strenuous activity.

Consider alternatives if...

If you need a jacket with built-in insulation for immediate warmth without layering, alternatives like the Trespass Hawthorne Down Jacket or Mammut Broad Peak Insulated Down Jacket would be more suitable.

Verdict

The Mammut Masao Jacket Men is an excellent choice for a dedicated, non-insulated hard shell. Its strengths lie in its specialized climbing features, robust weatherproofing, and ventilation options. While it doesn't offer the built-in warmth of down or synthetic insulated jackets, its design provides superior versatility for users who prefer to manage their temperature through layering. It stands out as a purpose-built tool for alpine adventures.

Specs comparison

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Materialsynthetic100% recycled polyestersyntheticsyntheticsyntheticsynthetic
Hood IncludedYesNoYesYesNoYes
Pocket Count431222
Closure Systemzipperzipper--zipperzipper

Specs vs competitors

Favorite On Favorite Off
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Materialsyntheticsynthetic100% recycled polyestersyntheticsynthetic
Hood IncludedYesYesYesYesYes
Pocket Count43323
Closure Systemzipper-zipperzipperzipper
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