Aku Slope Max GTX winter boot with Gore-Tex and Vibram sole

Protection and comfort for winter

The AKU Slope Max GTX boot retains the structure of the renowned Slope model, adapting it for winter use.

The high construction protects the ankle and offers good support when walking on natural terrain, while the nubuck leather helps resist abrasion, vegetation, and changing weather conditions.

AKU recommends it for day-long winter trekking on moderately difficult terrain, highlighting its comfort, lightness, and breathability.

GORE-TEX Insulated Comfort membrane

The GORE-TEX Insulated Comfort lining combines waterproofing with thermal insulation.

This solution helps keep the foot dry and protected from the cold during:

• winter walks
• trips on damp terrain
• woodland activities
• days of hunting
• use in rain, mud, or light snow

Compared to a standard GORE-TEX trekking membrane, the Insulated Comfort version is specifically designed for use in cold weather.

Nubuck leather upper

The upper is made from 1.8 mm thick nubuck leather.

This material offers a good combination of:

✔ Durability

✔ Protection

✔ Comfort

✔ Progressive fit to the foot

✔ Classic, robust appearance

The lower part is also protected by a rubber rand, useful against impacts, rocks, brambles, and abrasion.

Vibram Winkler sole

The Vibram Winkler sole is designed to provide grip and stability on outdoor terrain.

The tread is suitable for:

• woodland trails
• dirt
• mud
• gravel
• rocky terrain
• dry or damp natural surfaces

The sole structure also contributes to stability when walking on uneven and moderately difficult paths.

Cushioned midsole

The dual-density microporous EVA midsole combines cushioning and support.

The softer part helps absorb impacts while walking, while the firmer component promotes stability on uneven terrain.

Medium stiffness

The mounting board is made from 6 mm by 4 mm nylon and has medium stiffness.

This configuration offers a good compromise between:

✔ Foot support

✔ Stability

✔ Protection from uneven terrain

✔ Comfort during long walks

✔ Sufficient flexibility for daily use

This is not an extremely stiff mountaineering boot, but a model designed for trekking, hunting, and winter outdoor activities.

TECHNICAL SPECIFICATIONS

Model: AKU Slope Max GTX

Product code: 897 050

Type: high winter trekking and outdoor boot

Upper: 1.8 mm nubuck leather

Upper protection: rubber rand

Lining: GORE-TEX Insulated Comfort

Tread: Vibram Winkler

Midsole: dual-density microporous EVA

Mounting board: 6 mm by 4 mm nylon

Stiffness: medium

Insole: felt

Weight: 730 grams per half pair

Approximate weight per pair: around 1,460 grams

Sizes: UK 3 to UK 13

Waterproof: yes

Thermal insulation: yes

Breathable: yes

Production: Europe

Recommended use: winter trekking, hunting, woodland, hill walking, and moderately difficult trails.

INDICATIVE TEMPERATURE RANGE

AKU does not state an official minimum or maximum temperature for this model.

Considering the GORE-TEX Insulated Comfort lining, nubuck leather, felt insole, and high construction, the boot is suitable for winter use with temperatures between approximately −5 °C and 12 °C.

This range is only indicative and may vary depending on:

• the activity performed
• the duration of the outing
• the type of sock
• the presence of wind or moisture
• personal sensitivity to the cold

It is not a boot specifically designed for extreme mountaineering or polar temperatures.

BREATHABILITY

The AKU Slope Max GTX is breathable, despite being an insulated winter boot.

The GORE-TEX membrane allows moisture vapour produced by the foot to escape, while the construction is designed to maintain a good balance between warmth, waterproofing, and moisture management. In fact, AKU describes the model as comfortable, lightweight, and breathable.

STIFFNESS AND FLEXIBILITY

The structure has medium stiffness.

It is therefore suitable for those looking for:

✔ Good ankle support

✔ Stability on uneven terrain

✔ Protection underfoot

✔ Comfort during prolonged walks

✔ Greater flexibility than a technical mountaineering boot

IDEAL FOR

✔ Winter trekking

✔ Woodland hunting

✔ Hill hunting

✔ Outdoor activities in cold weather

✔ Moderately difficult trails

✔ Walking on damp ground

✔ Mushroom foraging

✔ Walks in light snow

✔ Long days outdoors

KEY FEATURES

✔ GORE-TEX Insulated Comfort membrane

✔ Winter thermal protection

✔ 1.8 mm nubuck leather upper

✔ Protective rubber rand

✔ Vibram Winkler sole

✔ Dual-density cushioned midsole

✔ Medium-stiffness structure

✔ Good ankle support

✔ Waterproof and breathable

✔ Also suitable for hunting