Keep your energy up with these Zigkick work boots XTR Composite toe meets or exceeds ASTM F2413 safety standards Static Dissipative (SD 10) with Dual Resistor Zigtech outsole disperses energy for enhanced cushioning from heel-strike to toe-off for an unparalleled shock absorption and energy return ZigTech EVA midsole with a TPU heel stabilizer Slip-resistant rubber outsole Removable FootFuel injected EVA footbed Leather upper Reebok Work Men's 6 Inch Zigkick Work