4" shaft height; Full-grain leather upper; Nano Composite Safety Toe meets or exceeds ANSI standards ASTM F2413-18 M/I/C EH; Nano Safety Toe is made with carbon nanotubes woven together to create one of the strongest and lightest weight safety toes, while still providing protection, comfort, and durability; Air-mesh lining for improved breathability and comfort; Double gore panels that flex for ease of entry; CellSole footbeds are antibacterial, moisture-wicking and removable; Single stitched welt; Molded rubber outsole provides durability