Safety shoes class S4

Different standards have been drawn up for safety shoes, tailored to the requirements and properties of the shoe and divided into classes. These classes are indicated by an S code. The S4 & S5 standards relate to work/safety boots. The S4 class includes work/safety boots with a composite or steel safety toe cap. They are basically the same as S1 safety boots, thus withstanding 200 Joule, but the boots are made entirely of injected PU (Polyurethane), vulcanised rubber or plastic materials. As a result, S4 safety boots are water- and liquid-proof. Besides a protective toecap, S4 safety boots also have an anti-static sole, a closed heel and a shock/energy-absorbing heel. Moreover, they have an indentation resistance of at least 15,000 Newtons.