Caterpillar CAT Framework S3 black leather steel toe/midsole safety work bootSafety Category : S3 Marking Code : WR+HRO+SRA Features Midsole Antistatic Water Resistant Toe Protection Resistance to high heat Heel energy absorption Slip resistant Waterproof Description The Framework is built with all of the features you would expect from a Cat work boot and then some. Includes all the features that promotes foot health by integrating stability, flexibility and comfort. Steel toe Full Grain Leather Upper Nylon Mesh Lining Cement