Petzl Vasak Spirlock Crampons


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Crampons built for traditional mountaineering, the Petzl Vasak Spirlock Crampons are designed for mountain and glacial travel. The VASAK provides comfort for walking and plenty of power for glacier climbing. The VASAK's semi-rigid design flexes a bit for a more natural gait and is extremely versatile. Length adjustment is tool-less and fast in support of your choice of footwear and also suggests the possibility of sharing crampons with a partner. These come with two flat front points for increased bearing power, thin-sectioned points for good penetration on ice, the next two points are inclined to give stability. The ten walking points are separated to respect the asymmetry of the boots and to limit the "rail" effect which increases the risk of slipping. The spirlock binding system are for boots with a rear sole overlap (wire at the rear, flexible binding at the front). Strap fastening system, avoiding the encumbrance of a heel-bail.


  • Walking on 10 points
  • Adjustment requires no tools at all, adjust to the half-size
  • Point lengths are optimally set to reduce stilt effect, improving stability and walking efficiency in mixed conditions
  • Semi-flexible design has the right combination of rigid support on steep angles and flex for natural walking comfort

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Review Summary

5 out of 5

5 Reviews

  • Performance: 3
  • Build quality: 2
  • Ease of use: 2
  • Great design: 1

  • Cost: 2
Durability: 5 / 5
Quality: 5 / 5
Grip: 4.7 / 5
Accessories: 4.3 / 5

5 Ratings & Reviews

Accessories: 4 / 5
Durability: 5 / 5
Grip: 5 / 5
Quality: 5 / 5
TypeOfClimbing: Alpine / 5
from California
45-54 yrs

Great Product
December 24, 2010

This is the first time i am trying off a crampon that my friend has suggested me, and what a surprise, went on a bit of snowing trail last weekend, and the grip of the spikes and the spirlock binding system are great, easy to use, also the build quality is solid, i would recommend this to anyone.

Pros: Great design, Build quality, Performance, Ease of use, Cons: Cost

Trustworthy crampons
March 10, 2010

This is the second pair I've owned. Very solid. Trust them absolutely. One gripe - WHY DO I HAVE TO BUY A SECOND SET OF THE LINK BARS FOR MY SIZE 12 BOOTS?? It's $25 for the long link bars. The included regular link bars link bars only fit up to approx size 10.5-11. Why can't they just be an option instead of making me spend the extra money?

great product
December 23, 2009

My husband has used other crampons in the past...they have broken while on the side of a mountain. BUT NOT THESE CRAMPONS! He loves them. Especially the fact that they lock around his ankle. High quality product for sure!

Accessories: 4 / 5
Grip: 4 / 5
Quality: 5 / 5

Build confidence
January 09, 2011

This product allowed me to come down from the mountains without worrying about slipping and falling on icy conditions. I gained confidence on hiking on the snow/icy conditions and improved my time on the trips.

Pros: Build quality, Performance, Ease of use, Cons: Cost
Accessories: 5 / 5
Durability: 5 / 5
Grip: 5 / 5
Quality: 5 / 5
TypeOfClimbing: Alpine / 5
from Washington State
35-44 yrs

Sharp, grippy crampons
September 15, 2011

These are the best! I love that the toe slides in, but the heel "clamps" in. They are not bulky and do not wiggle when worn on my boots. The points are sharp and snow does not stick to the bottom of the crampon. My only complaint is that it is a little tricky to lace the strap into the inner ring, especially if wearing mitts. Also, since my boots are size 7 women's, the bar was too long to fit my boots. An easy fix... I just had to cut about half an inch off the bar.

Pros: Performance

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