High-quality Chelsea model safety boots from JCB, S3 SRC standard, European quality standard CE EN ISO 20345: 2011. Water-repellent FULL GRAIN smooth cowhide. Two-layer polyurethane sole, shock absorber, anti-static, resistant to oils and fuels, dynamic friction coefficient SRC. Protective dome made of 200J composite materials. Kevlar protective pad ZERO PENETRATION. Anatomical insole for maximum comfort.