Boot Height: Approx. 8'' Tall. ASTM F2413-05 Electrical Hazard Standard. ASTM F2413-05 I/75 C/75 Protective Toe Classification. Composite toe. Direct attached dual-density PU and rubber Five-0 Flex outsole. Guaranteed Rocky Waterproof construction. Integrated TPU heel stabilizer. Non-Metallic Stabilizer. Padded Collar for added comfort. Pro-Cell MAX double stacked perforated polyurethan air-flow insert.