Oil and slip resistant. Full-Grain Water-Resistant Polishable Leather. Terra Suspension Footbed and PU outsole for Stability and Flexibility. Postal Approved which is non-slip, resists bloodborne pathogens, bodily fluids, gasoline and more. SlipStop outsole channels liquids away from feet. Berry Compliant, Moisture-Wicking Lining, Non-Metallic Stabilizer.