PL
Safety shoes with the PL requirement, compliant with EN ISO 20345:2022, are equipped with a non-metallic perforation-resistant insert placed in the sole. The certification test involves penetration with a 4.5 mm diameter nail with a force of 1100 N: the non-metallic insert must resist without being perforated, guaranteeing the same level of protection as the traditional steel insert. The main advantage of non-metallic inserts compared to metallic ones is the reduced weight and greater flexibility, which improve the comfort of safety footwear during prolonged use and make the footwear lighter.
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