Boot Height: Approx. 6'' Tall . Get higher protection from the Protract 6 Inch Steel Toe work boot from Caterpillar. Designed with iTechnology™ construction, this boot leather upper, nylon mesh lining and Ortholite sock lining to take care of any worker’s needs. Steel toe adds safety to an already protective boot.Leather upper. EVA midsole. Electrical Hazard. Steel Toe ASTM. Nylon mesh lining. T777 iTechnology™. iTechnology Construction.