11 Inches in height Acid- and oil-resistant laces and stitching throughout Acid- and oil-resistant neoprene and leather upper Acid- and oil-resistant rubber outsole ASTM F2413 electrical hazard standard ASTM F2413 protective toe classification ASTM F2413 puncture resistant standards Baffin 8 layered inner boot Baffin layered inner boot system manufacturer comfort rated to -148°F CSA / ASTM / CE approved CSA Green Triangle meets CSA standards for Grade 1 protective toe and has a protective plate between the outsole and midsole for puncture resistance CSA Omega Rectangle meets CSA standards for electric shock resistance CSA Z 195-14 slip-resistant test results: At room temperature Wet-0.56, At -20C Wet-0.52 Frost plate foot-bed finish GelFlex fatigue-resistant midsole Hi-vis reflective strips Light weight PU base is cold crack tested to 50,000 flexes at -50°C/-58°F Microcellular waffle foot-bed traps air and moisture Non-metallic