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Petzl Vasak 12-Point Mountaineering Crampon


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  • Flexlock, One Size
  • Leverlock, One Size

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Vasak 12-Point Mountaineering Crampon

Petzl made the Vasak 12-Point Mountaineering Crampon compatible with any ski, alpine, or hiking boot for booting couloirs and traveling glaciers. The Leverlock Vasak includes step-in Fil or strap-on Fil Flex attachments for ski, telemark, or hiking boots, and the Flexlock Vasak offers hybrid compatibility for any alpine boot with a heel welt and without a toe welt. This crampon features Petzl's Antisnow anti-balling plates and 12 points, including dual horizontal front points for enhanced purchase in solid snow.

  • Flexlock or Leverlock boot compatibility
  • Antisnow anti-balling plates
  • Horizontal front points
  • Item #PTZ004K

Front Points
Number of Points
Anti-balling plates
yes, Antisnow
Boot Compatibility
[Flexlock] hybrid, [Leverlock] (Fil) step-in, (Fil Flex) strap-on
Claimed Weight
[Flexlock] 1 lb 12 oz, [Leverlock] (Fil) 1 lb 13 oz, (Fil Flex) 1 lb 14 oz
Recommended Use
Manufacturer Warranty
3 years

Tech Specs

What do you think about this product?


>Rating: 5

Perfectly paired with my ski boots.

I've used it once or twice and have initial impressions

And they fit in my backpack so I can take them on any ski mountaineering mission without a hassle. The fit feels secure, and link adjusts without a problem.

>Rating: 5

Great for Mountaineering, Good for Ice

I've used it several times

These are the crampons I learned to ice climb in, and they treated me well throughout my time using them. They excel as a mountaineering crampon, especially on steeper, firmer snow due to their fairly rigid construction, providing support in these types of conditions. Additionally, they balance this strong climbing ability with a relatively light weight. While they will never climb steep ice as well as crampons featuring vertical front points, they are still capable of climbing up to WI 4 and keeping it enjoyable. These or the BD Sabretooth would be my choice for steeper, more technical mountaineering routes, or as a quiver of one for mountaineering with some ice climbing.

>Rating: 4

Decent from Snow to Vertical Ice

I've put it through the wringer

These are solid all around, versatile crampons that don't excel at much in particular. For basic snow travel, they are a little heavy but do well. Can attach to running shoes or mountaineering boots, and I really appreciate this versatility. However, I've since upgraded to aluminum Grivel Air Tech Lights for fast and light ascents. They've held up well on rock and dirt but watch for the screws to loosen over time. Other reviews may say these don't climb vertical ice, but they do quite well. As a complete beginner, I was able to climb WI4 with these crampons, mountaineering boots, and some archaic Aztar tools (which people also say cannot climb vetical ice, but I beg to differ) that I modified to be leashless. The flexlock felt solid and never seemed questionable. Granted I've never used true ice climbing crampons and they're probably loads better, but for an aspiring alpinist, these are all you need. If you're looking for one pair of crampons to take you from running peaks in the summer to some moderate ice climbing, this is a great pair.

>Rating: 5

The Best Non-Technical Crampon!

I've put it through the wringer

The crampons can do almost everything. I have used them on all routes EXCEPT vertical ice. I recommend these crampons for Rainier, Hood, Adams, Whitney, Baker, Tahoma and everything in between. I have actually used them on all of these mountains myself. Like I mentioned before they work great until you start to get really technical. In that case you will need to bump up to a crampon with better front points. I always recommend a crampon with 12 points for safety reasons. If the snow becomes soft, you will want the most traction possible to avoid sliding out. The weight of the extra 2 points is definitely worth it. I have these crampons in the clip and strap versions and mostly use my strap version with my hiking boots. The strap versions of these crampons and most other ones provide a great fit and are very secure. You will not see a great difference from a strap, to clip, to fully auto crampon unless you are doing very technical terrain where the smallest amount of play in the boot matters for precise kicking. I would recommend a strap version unless you only plan on using your crampons with mountaineering boots and NEVER a hiking boot. Let me know if you have any questions on these crampons, or any other crampons we have on the site!


I just bought the salewa crow gtx in size 11. Will these crampons work for them?


I am buying these for my Husband who has Dynafit AT Ski boots. I just want to make sure that I need the Flex lock, is that correct? Thanks!


I'm a bit confused on the compatibility and which to chose, lever or flex lock. I'm looking to strap these to a snowboard boot.

Hey Clinton - You want the Flexlock Vasak for compatibility with snowboard boots. Feel free to contact me directly with any additional questions. - Kyle L. - Expert Gearhead