ProNose double toe cap. KEVLAR® thread in the seams. withstands short-term heat up to 427°C (maximum use limit) and long-term heat up to 204°C (continuous use limit). heat-resistant upper. heat-resistant outsole. oil-resistant outsole. antistatic properties. FX2 Supreme insole. closed boot tongue. Velcro® fastening. padded boot leg edge. water-repellent. poron® XRD® double shock-absorbing zones. complies with IEC 61340-5-1 (ESD). EN ISO 20345:2011. S3 SRC CI HRO HI.