Mammut is urging customers to check their Via Ferrata sets. The Skywalker Pro and Skywalker Pro Turn sets are affected. Find out here if your set might be affected and what exactly you should check.
As part of a quality assurance process, Mammut identified a potential problem with the locking mechanism of the carabiners used in the Skywalker Pro Via Ferrata- and Skywalker Pro Turn Via Ferrata Sets should be used.
These are two possible malfunctions of the carabiner, which occur particularly at cold temperatures and can therefore impair the safety of the product.
The cause was traced to the plastic locking arms of the carabiner. These can easily bend inwards due to external influences during production, transport, or storage. If they are subsequently exposed to low temperatures, the clasp can stiffen, restricting the movement of the carabiner and potentially preventing it from closing properly.


Is my set affected?
This review affects the following Mammut products equipped with Skywalker Pro carabiners. The model numbers can be found on the product packaging or on the textile label inside the energy absorber package below the zipper (see FAQs).
- 2040-02840 – Skywalker Pro Via Ferrata Set
- 2040-02850 – Skywalker Pro Turn Via Ferrata Set
- 2040-02870 – Skywalker Pro Via Ferrata Package
Important note: If your Pro Via Ferrata carabiner Batch number 07/2021 or 11 / 2022 * If you have any issues, please skip the verification process and return your products directly for an exchange.
For all other batch numbers, please follow the process below to verify your products.

Check your via ferrata set
To ensure your safety, please follow these steps to check your via ferrata set:
- Check the Batch number on the carabiner (see FAQ where you can find the carabiner's batch number). If it is batch number 07/2021 or 11/2022 without an additional "R", you can skip the check and return the products directly as described below.
- For all other batch numbers: Place the via ferrata set in the refrigerator at a temperature between 0°C to 10°C.
- Leave the via ferrata set for at least 1 hour in the refrigerator.
- Take the set out of the refrigerator and immediately check the carabiner by repeatedly opening and closing it.
Your carabiner may be affected by the defect if:
- The carabiner in open position gets stuck (instead of automatically jumping back to the closed position).
- The carabiner is difficult to open and close instead of sliding smoothly. smooth to move.
My set is affected – what now?
Should your via ferrata set be affected by the described defects, please discontinue use immediately and return it to Mammut. It doesn't matter where you purchased the set. You can find detailed return instructions and FAQs by clicking the button here.
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