It features an Ortholite insole for lasting comfort and a steel shank for added support. Its Vibram Commander-X5 rubber outsole resistant to heat, oil, chipping, chemicals, and slipping provides stability and protection no matter what surface you are working on. This boot also meets ASTM F2892-11, EH safety footwear standards. Driscoll 11 inch Oil Resistant Soft Toe Work Boots