Shaft Height: Approx. 3 1/2'' Tall. Heel Height: Approx. 2 1/2'' Tall . This ANSI class 75 rated steel toe boot offers both style and function. The full grain leather upper comes with a nylon mesh/suede lining and an Ortholite sock liner. The midsole comes equipped with EVA heel cushioning and the outsole sports T691 iTechnology. These steel toe boots are rated ANSI Z41 PT99 I/75 C/75 with special EH construction that protects the wearer against open circuits up to 600 volts in dry conditions.