Details ENISO 20345-1 S3. Quality leather uppers with metal toe cap. Water resistant leather. Phylon rubber outsole. Oil resistant. Anti-slip/Anti-static sole. Steel midsole. Heat resistance to 300°C. SRA : Outsole slip resistance BS EN ISO 20344:2004/A1:2007 (5.18).Size range 4-12. Himalayan 5200 Black Leather Fully Waterproof S3 SRA Safety Boot