SRC Slip Resistance: soles pass both SRA and SRB slip resistant tests, they are tested on both steel and ceramic surfaces. Steel Toecap: robust metal support to protect the feet of the wearer against falling or rolling objects. Steel Midsole: puncture resistant steel midsole will prevent sharp objects from penetrating the outsole Antistatic: prevents build-up of static electrical charges and ensures that they are discharged effectively. Ecodesert S1P Safety Mid Boot