I’m Andreas Trunz – founder of AUFTRIIB. Passionate mountaineer,
climber and skier.

AUFTRIIB is the result of my personal passion. 

I initially designed CRAMPOW for my own purposes.
Driven by feedback from Sam Anthamatten, Jérémie Heitz , Cody Townsend, Nikolai Schirmer and many others, I decided to share with the community.

Every aspect of AUFTRIIB is based on free time, my private initiative & financing and the help of family and friends.



Because YOU

are a grown-up freeskier

love and respect the mountain

earn your turn, hike your line – naturally

And WE

often stranded in some gully

taking 1 step forward, 2 steps back

wishing we had paws to give us more uplift

The CRAMPOW idea was born.


” Take a light plate and add the front teeth of crampons – it’s not rocket science… “

didn’t make their development an easy task…

The many may not need CRAMPOW – but the few need them a great deal.



the total weight per pair should not exceed that of
normal crampons


the system should be easy to mount and stay solid on the boot


it must cope with serious impact forces when used in
black ice


the plates should pack easily on or in a normal backpack


AND the product must be somewhat affordable (even if invaluable…)

Execution is key

Key for AUFTRIIB was and is CEM – our manufacturer.

Cem Koeylueer could be consulting F1 racing stables or commercialize his incredible expertise in any industry where lightweight design counts.

His supporting AUFTRIIB with engineering and manufacturing of the composite parts is therefore one big GIFT. 


our roots

We belong to the Swiss Alpstein mountains.
This range around the Säntis has shaped our skills and preferences.

Bootpacking hidden lines and trying to ski them is how we recharge our batteries. But when snow meets steep terrain, power supply can become an issue.

At some point we always ended up wallowing and wishing for crampons that offered more uplift.

our roots

Uplift was obviously our need,
but compromising the safety
of crampons would not be
an option.

Isn’t there a better way?

Raw materials, supply chain, life cycles – there must be alternatives.

We try to set positive examples in these areas:

1. Source from the nearest possible suppliers
2. Care about the origin (raw materials)
3. Think ahead (disposal, recycling)

Get in touch

questions? input? ideas?

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