Boot Height: Approx. 12'' Tall. Chemically tested against 28 industry chemicals, including many of the chemicals commonly found in the hydraulic fracturing industry, the SPOG features a seamless exterior of chemical resistant dipped latex neoprene, an air mesh lining for inner boot air circulation and a rubber cup outsole with oil and slip resistant traction. It is also electrical hazard rated and meets or exceed ASTM F2892-11 EH.