Durable and Reliable, the SDR10CSI has everything you need to withstand heavy industrial applications, including high quality full grain leather, durable DDR sole technology resisting 300° heat, heavy duty bump cap, a steel toecap and protective midsole. Ideal for the petrochemical industries due to the full midsole and outsole rubber sole system. Safety Standard: EN ISO 20345:2011 S3 Additional Protection: HI CI HRO SRC Product Code: SDR10CSI