This guaranteed RockyA(R) Waterproof boot was designed with an EMT in mind. Created with many safety features, the medical public service boot provides a high level of protection against potentially hazardous substances, which is safer for EMTs.The footwear complies with the ASTM F2413 electrical hazard standard, which provides secondary protection against accidental electrical contact, in addition to having a rubber outsole.The protective toe of the Rocky 1st Med Carbon Fiber Toe Puncture-Resistant Side-Zip Waterproof Boot is made from carbon fiber and meets the ASTM F2413 protective toe classification.In addition, the quality-constructed RockyA(R) boot has Lenzi puncture-resistant plate, and is made of full-grain leather and CORDURAA(R) nylon.The practical, black boot has reflective highlights so it&';s easily seen, and it&';s slip-resistant for whatever smooth and slippery surfaces you encounter. Get yourself a pair of Rocky BootsA(R), and experience their safety and performance. Reflective highlights ASTM F2413 protective toe classification Inside side zipper ASTM F2413 electrical hazard standard Guaranteed RockyA(R) Waterproof construction Slip-resistant rubber/EVA outsole Weight: 4.1 pounds per pair for a size 10 Carbon fiber protective toe cap 8 Inches in height Full-grain leather and CORDURA nylon LenziA(R) puncture-resistant plate ASTM F2413 puncture resistant standards PPE - Contains PFAs