Waterproof AIRFLOW membrane Crazy-horse leather SHIELDTEX abrasion resistant fabric Composite protective toecap Ultra-resistant TPU PARESHOK bumper toe Non-metallic puncture-resistant insole Direct-attach PU midsole Protection against electrical hazards Ultra-light and metal-free 6 inch boot VIBRAM ARCTIC GRIP rubber outsole for best grip on wet ice Comfortable and breathable R-LITE footbed The most advanced cold weather gripping system ever created by Vibram VIBRAM® ARCTIC GRIP PRO™ Outsole VIBRAM® ARCTIC GRIP PRO™ is an advanced cold-weather outsole technology, designed to enhance performance on wet and dry ice, ensuring exceptional grip in the harshest winter conditions. Reliable Waterproof Protection AIRFLOW™ Waterproof Membrane AIRFLOW™ is our proprietary, durable waterproof membrane that prevents water from entering while allowing moisture to escape, ensuring dryness and comfort inside the boot. Certifications Protective Toecap & Puncture-resistant Sole (CSA Z195-14) Certified grade 1 protective toecap that withstands impacts up to 125 joules and certified puncture-resistant sole that withstands at least 1200 Newtons (270 pounds) Electric-shock Protection (CSA Z195-14) Certified electric-shock protection (18 kV / 60 Hz / 1 minute) Protective Toecap Impact Resistance (ASTM F2413-18) Certified protective toecap that can withstand an impact of 75 ft-lbf (~100 Nm) Protective Toecap Compression Resistance (ASTM F2413-18) Certified protective toecap that can withstand a compression of 2500 lbs (~1135 kg) Puncture-resistant Sole (ASTM F2413-18) Certified puncture-resistant sole that can withstand a force load of 270 lbf (1200 N) Electric Hazard Protection (ASTM F2413-18) Certified electric-shock protection (18 kV / 60 Hz / 1 minute)