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Mammut

Mammut Alto HS jacket

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Features of Mammut Alto HS

Product description of Mammut Alto HS jacket

Description summary

Conquer any peak with the MAMMUT Alto HS Hooded Jacket. This lightweight, waterproof, and windproof hardshell for women offers ultimate protection and breathability for demanding mountain tours. Engineered with stretch fabric and pre-shaped sleeves, it ensures unrestricted movement. Features include a helmet-compatible hood, water-repellent underarm zippers for ventilation, and harness-accessible pockets. Designed for performance and comfort, it´s your essential shield against the elements

MAMMUT Alto HS Hooded Jacket - Women

Master the Elements with This Lightweight, High-Performance Hardshell Jacket

Discover your ultimate companion for demanding mountain tours with the MAMMUT Alto HS Hooded Jacket for Women. Engineered for those who refuse to let the weather dictate their adventure, this technical jacket offers an exceptional balance of uncompromising protection, breathability, and freedom of movement. Whether you´re hiking through unpredictable alpine terrain, embarking on a multi-day trek, or ski touring in the backcountry, the Alto HS jacket is your reliable shield against the elements, allowing you to focus on the summit ahead.

This advanced hardshell is designed to perform when you need it most. It provides complete waterproof and windproof protection, keeping you dry and comfortable during sudden downpours or persistent high-altitude winds. Despite its robust defensive capabilities, the jacket remains remarkably lightweight and packable, easily stowing away in your backpack until called upon. Its intelligent design incorporates a high-performance technical fabric that not only blocks moisture from the outside but also allows internal vapor to escape, ensuring you stay comfortable even during high-exertion ascents. For rapid temperature regulation, the jacket is equipped with water-repellent two-way underarm zippers for optimal ventilation.

Movement is essential in the mountains, and the Alto HS is built to move with you. The inherent stretch of the synthetic material, combined with pre-shaped sleeves, offers an athletic fit that provides full, unrestricted range of motion for climbing, scrambling, or planting your poles. The fully adjustable, helmet-compatible hood features a reinforced peak to keep rain out of your eyes and can be quickly cinched with a single pull, ensuring a perfect fit with or without a helmet.

Thoughtful details elevate this jacket from a simple piece of rain gear to essential mountain equipment. The two front pockets are strategically placed to remain accessible even when wearing a climbing harness or a backpack hip belt, and feature water-repellent zippers to protect your essentials. The cuffs are easily adjustable with high-quality hook-and-loop fasteners, and the hem can be tightened via a drawstring to seal out drafts and spindrift completely. This is the definitive all-around jacket for the discerning female mountaineer.

Key Attributes:

* Hardshell
* Stretch
* Synthetic
* Waterproof
* Windproof
* With Hood
* Women

Technical Specifications:

* Water Column: 20.000 mm
* Vapor Permeability: 20.000 g/m²/24h
* Weight: 377 g
* Cut: Athletic Fit
* Hood: Helmet-compatible, one-point adjustment system
* Hem: Adjustable drawstring

Specifications

Manual

Technical specifications of Mammut Alto HS

  • Waterproof Membrane

    DryVent

  • Ventilation / Breathability

    15.000 G/M²/24H

  • Insulation type

    Shell

  • Durable water repellent

    Yes

  • Weight

    395 G

  • Hood

    With Hood

  • Color

    Black

  • Features

    Waterproof

  • Features

    Windproof

  • Features

    Stretch

  • Features

    Compressible

  • Gender

    Women

  • Kind of Jacket

    Hardshell

Features of Mammut Alto HS

Hood With Hood

Hood

With Hood

Color Black

Color

Black

Features Waterproof

Features

Waterproof

Windproof

Windproof

Stretch

Stretch

Compressible

Compressible

Gender Women

Gender

Women

Kind of Jacket Hardshell

Kind of Jacket

Hardshell

Key differentiators

Compressible design for easy packing and transport.

Engineered with stretch synthetic fabric for an athletic fit and freedom of movement.

Features a helmet-compatible hood with a one-point adjustment system.

Includes two harness-accessible front pockets with water-repellent zippers.

Waterproof and windproof protection featuring a DryVent™ membrane.

Technology in Mammut Alto HS jacket

Energy rating

Warnings

/ 5

1 Reviews

What our customers are saying about Mammut Alto HS jacket

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Include AI Generated questions and answers

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

What are the main features of the Mammut Alto HS Jacket for women?

Answer of Generated by AI and verified

The Mammut Alto HS Jacket is a hardshell designed for adults. Its key features include being waterproof, windproof, compressible, and made with stretch fabric for enhanced movement. It also has an adjustable drawstring hem.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

Is the Mammut Alto HS jacket suitable for wearing with a helmet?

Answer of Generated by AI and verified

Yes, the product description mentions that this jacket is designed with a helmet-compatible hood, making it suitable for activities where a helmet is necessary.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

Does this jacket have pockets?

Answer of Generated by AI and verified

Yes, the Mammut Alto HS Jacket is equipped with 2 pockets. The product description also notes that they are designed to be accessible while wearing a harness.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

What kind of jacket is the Mammut Alto HS?

Answer of Generated by AI and verified

The Mammut Alto HS is classified as a 'Hardshell' jacket. This type of jacket is typically designed to provide robust protection from wind and water.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

What material is the Mammut Alto HS jacket made from?

Answer of Generated by AI and verified

This jacket is constructed from a synthetic outer material. It also incorporates a DryVent waterproof membrane for weather protection.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

Is the Mammut Alto HS jacket insulated?

Answer of Generated by AI and verified

No, this jacket is a shell. Its insulation type is listed as 'Shell', which means it is designed as an outer protective layer without integrated insulation. You would typically layer it with insulating mid-layers for warmth.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

Does this jacket offer ventilation options?

Answer of Generated by AI and verified

Yes, the product description confirms that the jacket has water-repellent underarm zippers, which are designed to provide ventilation for temperature regulation during high-exertion activities.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

Is the Mammut Alto HS jacket waterproof and windproof?

Answer of Generated by AI and verified

Yes, the jacket is designed to be both waterproof and windproof, making it a reliable outer layer for protection against the elements during mountain activities.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

What activities is this jacket good for?

Answer of Generated by AI and verified

Based on its features like being a waterproof and windproof hardshell with stretch fabric and a helmet-compatible hood, this jacket is well-suited for demanding mountain tours, hiking, multi-day treks, and ski touring.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

Is this jacket easy to pack for a trip?

Answer of Generated by AI and verified

Yes, one of the listed features of this jacket is that it is compressible, which makes it easier to pack into a backpack when not in use.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

Who is the intended wearer for this jacket?

Answer of Generated by AI and verified

The Mammut Alto HS Jacket is designed for adult women, as indicated by the product name and attributes.

* Generated by AI based on customer and product data

2026-09-27

Generated by AI and verified

Mammut Alto HS jacket

How does the Alto HS jacket compare to the Mammut Ducan HS jacket?

Answer of Generated by AI and verified

Both the Mammut Alto HS Jacket and the Mammut Ducan HS Jacket are designed for women and feature 2 pockets. The primary difference noted in our available data is that the Alto HS is specified as a hardshell with stretch properties, while specific details for the Ducan HS are not provided for a direct comparison on that front.

* Generated by AI based on customer and product data

Ask a technical question about this product

Frequently bought together
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Use cases

Alpine Climbing & Mountaineering 100% Fit

This hardshell jacket provides essential protection from unpredictable mountain weather. Its waterproof and windproof capabilities, combined with a helmet-compatible hood and stretch fabric, make it a high-performance choice for technical ascents where mobility and weather resistance are critical.

Hardshell construction,Waterproof and Windproof features,Stretch fabric,Helmet-compatible hood

Multi-Day Trekking & Backpacking 90% Fit

As a compressible shell, this jacket is an ideal piece of emergency rain and wind gear for multi-day treks. It takes up minimal space in a pack and provides reliable protection when storms roll in, while the adjustable hem helps seal out drafts.

Compressible,Waterproof,Windproof,Adjustable drawstring hem

Ski Touring & Backcountry Skiing 80% Fit

This jacket serves as a durable outer layer for ski touring, offering advanced protection against wind and snow. The stretch material allows for unrestricted movement during ascents and descents, and its helmet-compatible hood fits securely over ski helmets.

Windproof,Waterproof,Stretch fabric,Helmet-compatible hood

Year-Round Hiking in Variable Conditions 90% Fit

As a versatile shell jacket, this is a serious upgrade for hikers who venture out in all conditions. The DryVent waterproof membrane provides reliable protection from rain, while its windproof nature is essential for exposed ridges and summits.

Hardshell construction,DryVent waterproof membrane,Windproof,Adjustable drawstring hem

Best for

Ideal for Alpinists and Mountaineers

This hardshell jacket provides essential windproof and waterproof protection with its DryVent membrane, while the helmet-compatible hood and stretch fabric support high-alpine ascents.

Based on: features: Waterproof, Windproof, Stretch; Kind of jacket: Hardshell; Waterproof membrane: DryVent

Best for Performance-Focused Climbers

Engineered for active use, this jacket's stretch properties and athletic fit allow for unrestricted movement on technical routes, and it remains compressible for easy packing.

Based on: features: Compressible, Stretch; Kind of jacket: Hardshell; Top Benefits: Active Lifestyle Compatibility

A Top Choice for Dedicated Thru-Hikers

Offering reliable weather resistance in a compressible package, this jacket is an excellent shell layer for long-distance treks where conditions can change unexpectedly.

Based on: features: Compressible, Waterproof, Windproof; Top Benefits: Weather Resistance & Durability, Versatile Layering Options

Benefits

FunctionalStay Dry and Shielded from the Elements

This hardshell jacket offers reliable protection in changing weather conditions, featuring both waterproof and windproof properties to keep you comfortable and dry. The inclusion of a DryVent waterproof membrane enhances its ability to shield you from rain and wind.

Features: Compressible

Stretch

Waterproof

Windproof

Kind of jacket: Hardshell

Waterproof membrane: DryVent

FunctionalAchieve a Secure, Personalized Fit

You can easily tailor the fit of this jacket to your preference with its adjustable drawstring hem. This feature helps to seal out drafts and secure the jacket in place, enhancing both comfort and protection against the elements.

Hem: Adjustable drawstring

Ideal buyer profiles

The Alpinist

This individual participates in technical mountain sports where conditions are unpredictable and demanding. They require outerwear that offers uncompromising protection from wind and rain without hindering movement during ascents.

The Mammut Alto Hs Jacket is a hardshell designed for these conditions, featuring a DryVent waterproof membrane and windproof construction. Its helmet-compatible hood integrates seamlessly with climbing gear, while the stretch fabric ensures mobility. As a compressible shell, it can be easily packed away when not in use.

The Climber

Whether on a multi-pitch rock route or an alpine face, the climber needs a durable, weather-resistant shell that moves with them. Their gear must be functional, allowing for easy adjustments and access, even while wearing a harness and helmet.

This jacket's hardshell design provides robust protection against the elements. The athletic fit and stretch properties allow for a full range of motion required for climbing. The one-point adjustable, helmet-compatible hood is a key feature for ensuring visibility and protection without interference.

The Thru-Hiker

Covering long distances on foot for days or weeks at a time, the thru-hiker prioritizes gear that is lightweight, versatile, and reliable. They need a single jacket that can handle a variety of weather conditions, from sudden downpours to high winds.

As a compressible shell, this jacket is ideal for packing light without sacrificing performance. Its waterproof and windproof capabilities offer essential protection against changing weather on the trail. The adjustable hem helps seal out drafts, making it a reliable outer layer for long-distance treks.

Competitive features

When selecting technical outerwear for mountain adventures, it's essential to understand the subtle differences between available options. The Mammut Alto Hs Jacket for women is a hardshell designed for demanding tours, offering a specific set of features for alpine environments. We've compared it to other jackets in our collection, including models from La Sportiva, Cmp, Trangoworld, and Dare2b, to highlight its unique characteristics.

Where it excels

Engineered as a hardshell, the Mammut Alto HS Jacket provides waterproof and windproof protection, making it a reliable choice for unpredictable mountain weather. Designed for alpine performance, it includes features like a helmet-compatible hood, harness-accessible pockets, and underarm ventilation, catering specifically to climbers and mountaineers. Constructed with stretch fabric and pre-shaped sleeves, this jacket prioritizes freedom of movement, which is crucial for technical activities.

Consider alternatives if...

Verdict

The Mammut Alto Hs Jacket is a specialized hardshell built for demanding mountain tours. Its design focuses on providing waterproof, windproof protection while ensuring excellent mobility and breathability through features like stretch fabric and underarm zippers. While other jackets in this category offer general protection, the Alto HS stands out with its alpine-specific features like a helmet-compatible hood and harness-accessible pockets, making it a strong contender for serious hikers and mountaineers.

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