Oliver 55 332Z Wheat 150Mm Zip Side Safety Boot Polo T Shirts Singlets Minimizes the build up of WS4012 NAV 6XL Minimizes the build up of electrostatic charges and provides protection against the risk of spark ignition for such hazards as flammable materials and gases Upper made from premium quality water resistant Cow leather Antimicrobial Technology Features include Water resistant leather Oliver COOLstep® lining to absorb moisture and odour for optimum freshness and hygiene Lace locking fixture Kevlar® thread on critical wear seams for maximum abrasion and chemical resistance COMFORTcushion® Impact Absorption System uses a combination of cellular urethane and PORON® Oliver SOFTstride® open cell low density urethane foam for comfort and contour Shock absorbing Polyurethane midsole support NATUREform® Type 1 Toe Cap