Water resistant full grain leather upper GRIPthane dual density polyurethane sole, slip resistant and heat resistant to 130degC Comfort foot bed with perforated air channels to enhance natural air flow. Foot bed now infused with AEGIS Microbe Shield for greater comfort. Full lining treated with AEGIS Microbe Shield solution which protects against odour, staining and deterioration caused by bacteria. COMFORTcushion Impact Absorption System with PORON Electrical shock resistant