The Spiro is built with all of the features you would expect from a Cat work boot. Featuring ERGO; a series of design principles that work together to deliver footwear that promotes foot health by integrating stability, flexibility and comfort. Strobel and Cement construction. Removable Nylex and PU Insole. T870 Rubber Outsole. Penetration resistant poured PU midsole construction. Impact and compression resistant toe cap. Anti-static and energy absorbing heel. Water resistant upper. High heat resistance of 300C. Slip resistance SRC - Resistance against slipping on both ceramic and steel surfaces covered with water and cleaning products Safety Rating: S3 HRO SRC WR 200J Steel Toe Cap Steel Penetration-Resistant Midsole Wide Fit Fuel Oil-Resistant Sole 300°C Heat-Resistant Sole Waterproof Anti-Static Sole Shock-Absorbing Heel Reinforced Heel Safety Rating: S3 HRO SRC WR 200J Steel Toe Cap Steel Penetration-Resistant Midsole Wide Fit Fuel Oil-Resistant Sole 300°C Heat-Resistant Sole W...