No Risk Laars Vulcan 6674.42 S3 + KN.

Safety standards
The S standards of work shoes consist of the following categories:
S1: Anti-static, absorbs energy in the heel.
S2: As S1 with increased waterproofing/resistance.
S3: As S2 with a hardened midsole and non-slip tread.
S4: Like S1 but made of plastics and therefore completely waterproof.
S5: As S4 with hardened midsole and non-slip tread.
Safety Jogger's boots meet the strictest safety standards and carry the S standards S4 and S5. As well as being waterproof, the boots are also anti-static and they have a non-slip sole for extra grip. The boots have a steel midsole and steel top so that the boots offer extra strength. With Safety Jogger's safety boots, no work environment is extreme enough.
SB: Basic work shoes, fitted with a steel toecap and antistatic running sole for light-duty work.
S1P: Safety shoes of type S1P are based on safety class S1, with the added feature of having an anti-perforation sole.