Product technologies
AIR 8000
Laboratory tests confirm that the upper material made with the exclusive AKU system AIR 8000® offers up to 11.5 times higher breathability than normal standards with GORE-TEX®. Even after 20 years, the AKU system AIR 8000® remains one of the most modern technologies for excellent breathability of hiking shoes.
GORE TEX
The GORE-TEX® membrane offers an optimal combination of
breathability and insulation, ensuring dry feet and optimal comfort
for a wide range of outdoor activities
- in all weather conditions.
INTERNAL MIDSOLE SYSTEM
The Internal Midsole System (IMS) is an exclusive technology applied in the construction of the AKU insole. The traditional support structure made of nylon is combined with a layer of microporous material, which is attached to the inside of the upper shoe. This system, in which the sole perfectly adapts to the anatomy of the foot, ensures even pressure distribution, prevents lateral and forward sliding under heavy stress, provides shock absorption, and maximum wearing comfort.
IMS 3
In the version IMS3, the Internal Midsole System is coupled with an Exoskeleton construction and a second internal element made of molded EVA. The outer structure made of lightweight Polyurethane, a resistant, stable, and durable material, provides protection and support at key points, thus ensuring additional safety with every step. The layer of molded EVA, a softer material, also provides cushioning and damping, for a particularly comfortable walking feeling.
PERFORMANCE FIT
Narrow, enveloping lasts for professional footwear in the Mountain segment, favoring precision and sensitivity for use in rock climbing and on ice.
AIR 8000

Laboratory tests confirm that the upper material made with the exclusive AKU system AIR 8000® offers up to 11.5 times higher breathability than normal standards with GORE-TEX®. Even after 20 years, the AKU system AIR 8000® remains one of the most modern technologies for excellent breathability of hiking shoes.
GORE TEX

The GORE-TEX® membrane offers an optimal combination of
breathability and insulation, ensuring dry feet and optimal comfort
for a wide range of outdoor activities
- in all weather conditions.
INTERNAL MIDSOLE SYSTEM

The Internal Midsole System (IMS) is an exclusive technology applied in the construction of the AKU insole. The traditional support structure made of nylon is combined with a layer of microporous material, which is attached to the inside of the upper shoe. This system, in which the sole perfectly adapts to the anatomy of the foot, ensures even pressure distribution, prevents lateral and forward sliding under heavy stress, provides shock absorption, and maximum wearing comfort.
IMS 3

In the version IMS3, the Internal Midsole System is coupled with an Exoskeleton construction and a second internal element made of molded EVA. The outer structure made of lightweight Polyurethane, a resistant, stable, and durable material, provides protection and support at key points, thus ensuring additional safety with every step. The layer of molded EVA, a softer material, also provides cushioning and damping, for a particularly comfortable walking feeling.
PERFORMANCE FIT

Narrow, enveloping lasts for professional footwear in the Mountain segment, favoring precision and sensitivity for use in rock climbing and on ice.