Alnasca IV Low LTH GTX Men

Waterproof leather approach shoes

€220

Gabbro-acacia

  • Mammut Alnasca IV Low LTH GTX Men - Mammut red-strata
  • Mammut Alnasca IV Low LTH GTX Men - Gabbro-acacia
Low-cut, flexible shoes for confident footing during approaches, hikes and via ferrata routes. The FLEXTRON propulsion plate provides stable, stiff support for precise edging on technical terrain. An EVA foam midsole provides enhanced cushioning and shock absorption for added comfort. And the Vibram...
  • 6/6
    Hiking
  • 5/6
    Approach
  • Raised rubber rand
  • Upper material: durable Mastrotto suede leather, sustainably tanned in Italy
  • Vibram XS Trek outsole with Traction Lug™ for high-level grip
  • EVA midsole foam for extra comfort
  • Rubber toe cap for increased protection and durability
  • Ortholite® insole for long-lasting cushioning and step-in comfort
  • FLEXTRON delivers enhanced stability and stiffness for precise and confident edging, ensuring secure foot placement on technical terrain.

    • Approach
    • 3020-06560
    • Weight (UK 8.5)400 g
    • Flex indexA6
    • Lace systemStandard lacing
    • OutsoleVibram® XS Trek
    • MaterialVelours leather
    • LiningGORE-TEX Prism XT
    • MidsoleHigh Rebound Critical EVA
    • PlateFLEXTRON : Nylon / Carbon Compound
    • Insole brandOrtholite
    • Insole Height5.00 mm
    • Stack Height22/11 mm
    • Upper / Outer MaterialVelours Leather
    • Guaranteeopens in a new tab
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The benefits

  • Precision and stability on technical terrain

    The Flextron plate provides the stiffness and precision needed for secure, controlled steps on technical approaches.

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  • Enhanced cushioning for long approaches

    A high‑rebound EVA midsole delivers effective shock absorption and energy return for lasting comfort on long days out.

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  • Reliable grip when it matters most

    The Vibram XS Trek EVO outsole with climbing zone offers dependable traction and durability, even on unpredictable terrain.

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How does Flextron work?

FLEXTRON enhances stability, energy return, and support on uneven, technical terrain. The TPU midsole acts like a springboard for added rebound, while the shank provides stability to keep you balanced during scrambles. High side walls wrap the heel and midfoot for secure, flexible support, reducing strain for confident movement on demanding approaches.

Mountain Performance Fit

Designed for moments where precision is paramount, our Mountain Performance Fit wraps closely around the foot, especially at the heel and arch, to minimize internal movement and deliver secure, controlled steps on technical ground. Supple materials mold over time for a precise hold that supports confident movement on demanding terrain.

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How was your experience on this page?

How was your experience on this page?

Overall rating: 5.0 / 5 from 6 reviews.

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Reviews

Awesome!

"Perfect for it's purpose. 100% build and material quality. The laces tend to come loose a bit, but honestly, which ones don’t these days? ;-) Definitely not a dealbreaker, though—the shoes are just awesome!"

— Smeghead (5/5)

Sehr komfortabel und bequem mit

"Sehr komfortabel und bequem mit einer tollen hochwertigen Qualität."

— Peter B. (5/5)

The best shoe i have had

"I have walked around 300km in them now, I used them for ebc and upp to lobutche east high camp witch is 5900 moh, and I have kicked to manny rocks and my feet never hurt I am truly amazed with them, I walked the hole langtang vally trek on them, and in chitwan all of this is ofcourse in nepal, they are surprisingly worm and stiff but in a good way, I really love them"

— Josh T. (5/5)

Chaussures parfaitement finie, belle, confortable,

"Chaussures parfaitement finie, belle, confortable, précise et solide."

— Etienne P. (5/5)

Très belle finition et qualitée!

"Très belle finition et qualitée! J’ai juste le pied un tout petit peu l’étroit,"

— Benjamin C. (5/5)

Funktional & Design 👍

"Schöner Schuh und angenehm zu tragen"

— Jurgen L. (5/5)

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