Stout Brown premium leather with olive elastic sided boot. V cut upper reduces stitching exposure. PORON XRD in the heel strike zone for increased shock protection. Fully removable shaped comfort footbed. Polyurethane (PU) midsole/thermo urethane (TPU) outsole highly resistant to hydrolysis and microbial attack. Oil, acid and organic fat resistant. Outsole heat resistant to 290 degrees Fahrenheit. Ergonomically engineered toe spring for reduced wearer fatigue. Steel shank – ensures correct step flex point, assists with torsional stability. Lightweight and durable.