Stay safe and comfortable on the job in the Carhartt(R) Men's Traditional 10'' Pull On Waterproof Carbon Nano Toe work boots. Their Carbon Nano toe meets ASTM F2413-18 safety standards, and their Insite(R) footbed technology reduces foot fatigue for extra support. SAFETY: Carbon Nano (non-metallic) toe meets ASTM F2413-18 safety standards Secondary protection against incidental contact with electrical circuits of 18,000 volts or less under dry conditions WEATHER-READY PERFORMANCE: Storm Defender(R) Waterproof Breathable Protection keeps feet dry and promotes breathability IN-SHOE COMFORT: FastDry(R) sweat-wicking lining Insite(R) Technology Footbed creates maximum arch support to reduce foot fatigue PU Strobel pad for added comfort DURABILITY & TRACTION: Goodyear welt construction with Carhartt(R) rubber outsole ADDITIONAL DETAILS: Shaft height: 10''