Certified according to ce en iso 20345 : 2011 s3 standardswater resistant buffalo split leatherpupu sole for comfort and light weightheat resistant sole up to 200 degrees celsiusoil resistant soleslip resistance as per src standardantistatic inner and outer soleenergy absorption in the heelsteel toe capcomfortable coated steel mid plateeva insoleavailable in s1, s1p and s2 category.