Oil and acid resistant Neoprene upper design Oil and acid resistant stitching and laces High visibility reflective strips Oil and acid resistant rubber outsole for slip resistance in extreme cold temperatures Ice Bear outsole design for additional traction in ice and snow Light weight PU base is cold crack tested to 50,000 flexes at -50°C/-58°F Light weight GelFlex mid-sole provides cushioning to reduce fatigue and improve comfort Improved fit allows for maximum comfort and support Metal free safety toe and plate with electric shock resistant sole Baffin -100°C/-148°F 8 layered inner boot Micro cellular waffle foot-bed traps air and moisture Frost plate foot-bed CSA / ASTM / CE approved