The Petzl Vasak Leverlock Universel crampons offer a versatile system that covers all bases for various abilities.
What sets the 12-point Vasak crampons apart is their extreme modularity, allowing them to adapt to various boots and scenarios. I tested the Petzl Vasak Leverlock Universel, a C2/C3 version with a heel clip for B2 and B3 boots. It comes with standard toe baskets for B2 boots, or a metal bar for B3 boots with toe welts. For my low-profile B3 boots, the standard basket provided the best fit.
Lucy’s Best in Test 2025
Overall, these are well-designed, versatile crampons suitable for winter walking, gullies, and easier mixed climbs.- versatile modular system
- good for larger feet
- hard to fit to smaller sizes
Quick specs | |
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Price | £175 |
Weight | 880g (with C2 toe basket) |
Materials | Steel, plastic, nylon strap |
Features | Modular toe bail system, bi-position adjustment bar, adjustable heel clip, nylon strap with double quick-lock buckle |
No. of points | 12 |
Compatibility rating | C2 or C3 |
Fits sizes approx | EU 36-50, UK 4-15 |
petzl.com |
The Vasak also comes in a Flexlock format for B1 boots without welts and is slightly cheaper. Additionally, you can purchase various bindings and front sections from Petzl’s crampon range to modify the Vasaks for different uses, including more aggressive climbing, making this system highly versatile.
Fit-wise, the Vasaks have some limitations at the smaller end of the size range, but they include a clever internal system that secures the adjustment bar, minimizing overhang at the back. The bar offers various settings for length and can even be tweaked to increase or decrease asymmetry.

They’re relatively easy to adjust with gloves on, though it’s always best to do this in a warm, dry place before heading out.
On the ground, the Vasaks provide a positive feel underfoot, with notably long front points for steep terrain. The anti-balling plates work as expected, and the crampons are easy to put on and take off, allowing for smooth transitions.
Overall, the Petzl Vasak Leverlock Universel are well-designed, versatile crampons suitable for winter walking, gullies, and easier mixed climbs. They are ideal for novices looking to expand their skills and experienced users seeking a crampon system that covers all bases.
Testing Conditions
Testing took place during the winter 2023-24 season in the west of Scotland, Munro-bagging and teaching winter skills as part of Lucy’s work as a Mountain Leader. Weights supplied were obtained using her home digital scales. This review was first published in the January 2025 issue of The Great Outdoors magazine. To compare other options, read our guide to the best crampons you can buy.