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 Construction Poured PU Midsole This product is Waterproof. Upper Material: Full Grain Leather. Lining Material: Nylon mesh. Sole Material: Rubber. Fitting Width: Wide. P722602.