The Aku Viaz DFS, developed for rocky tours in the high mountains, is a great success: it shines with top climbing performance and is still very comfortable to wear. Thanks to the ultra-stiff, edge-stable but sensitive sole and snug-fitting shaft, you can climb the trickiest walls with dancing grace...
AKU Viaz Dfs GTX
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Product details
Durable mountain shoes for alpine challenges. The Viaz DFS GTX sets a new standard for versatile shoes designed for technical and fast mountaineering, demanding hiking, and via ferrata. They are an evolution of the AKU predecessor model Viaz and feature Dynamic Fit technology, which dynamically adjusts the tension in the heel area to your steps, enhancing comfort and stability. The AKU Dual Fit System (DFS) technology allows you to change the fit between walking and climbing modes. The Vibram Croda Litebase sole provides stability, grip, and precision, even in the most technical situations. The waterproof, breathable GORE-TEX lining protects your feet from moisture and ensures a pleasant wearing climate. Key features at a glance: Abrasion-resistant mountain boots for alpine tours, Dual Fit System ensures an ideal fit, GORE-TEX membrane protects against moisture.
Exact colour description | Black / Orange |
Colour | Black |
Target group | Men |
Shoe size (EU) | 42 |
Item number | 31308955 |
Manufacturer | AKU |
Category | Hiking boots |
Manufacturer no. | 395958 |
Release date | 8/3/2023 |
Colour | Black |
Exact colour description | Black / Orange |
Material group | Plastic |
Main fabric material | Polyester |
Upper | Fabric, Polyester, Polyurethane |
Sole material | Carbon, EVA, Polyurethane, Rubber |
Material inner lining | Polyamide, Polyester, Synthetic |
Material | Synthetic |
Target group | Men |
Age group | Adults |
Shoe size (EU) | 42 |
Sport | Climbing, High tours & expeditions, Mountaineering |
Membrane | Gore-Tex |
Fabric properties | Breathable, Waterproof |
Shoe sole technology | Gore-Tex Performance Comfort |
Fastener | Lace fastening |
Country of origin | Italy |
CO₂-Emission | |
Climate contribution |
Weight | 1090 g |
Product Safety |
Specifications may include unverified machine translations.
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Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Hiking boots» category have a defect within the first 24 months?
Source: Galaxus- AKUNot enough data
- 1.Dolomite0 %
- 2.adidas0,1 %
- 3.CMP Campagnolo0,2 %
- 3.Lowa0,2 %
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- AKUNot enough data
- 1.Lowa1 day
- 1.Mammut1 day
- 3.Merrell3 days
- 4.Scarpa4 days
Return rate
How often is a product of this brand in the «Hiking boots» category returned?
Source: Galaxus- 5.Lowa20,8 %
- 6.La Sportiva22,7 %
- 7.AKU23,3 %
- 8.Merrell24,2 %
- 9.Mammut25,6 %
Source: Galaxus
Translation: machine translated
Overall ratingVery good100/100
Without ratingNo rating
- Snow grip & ground feel
- Less grip on paths
The ice and alpine touring boot with top fit and additional forefoot traction has a grippy sole with top front kick and super snow repellence in the snow. The shaft is very flexible. Precise on rock, but less grippy at the front
Very good100/100
Developed for alpine tours, the Aku Viaz DFS shines with maximum climbing performance and amazingly high wearing comfort. Thanks to the ultra-stiff but sensitive sole and snug-fitting shaft, you can climb the trickiest walls with dancing grace. The forefoot, which can be laced separately with a quick-release fastener, is also very impressive. Price: 350 euros.