CONFORMS TO EN ISO 20345: 2011 S3 SRC UPPER Microvelour upper. Breathable and water-resistant Abrasion resistant and easy to clean. Stays looking new for longer Low weight and flexible material. Reduces fatigue and is comfortable TECH Steel toe cap. Reliable protection you can trust Penetration resistant, non-metallic midsole. S3 versions only Meets ESD requirements. Control of electrostatic discharge uvex climazone. Helps regulate internal temperature to reduce sweat SOLE PU sole with soft EVA insert. Flexible and high levels of comfort SRC rated. Excellent slip resistance Resistant to oil, petrol & brief exposure to heat up to 120°C SRC SRA Heel 0.38, SRA Flat 0.43, SRB Heel 0.18, SRB Flat 0.21