Comp 75 Safety ToeComposite safety toe caps provide the same protection as steel, but are non-metallic, corrosion resistant, transmit less cold and weigh less[EH] Electric Hazard Resistant FootwearConstructed or manufactured with electric shock-resisting soles and heels capable of withstanding an application of 18,000 volts (root mean square (RMS) value) at 60 Hz for 1 minute with no current flow or leakage current in excess of 1.0 milliamperes under dry conditionsWaterproofSTEDAIR® or SYMPATEX®: Breathable, waterproof lining/barrier capable of resisting blood-borne pathogens. Thoro>Tech™ or Thoro>Dri™: Breathable, waterproof lining/membrane with waterproof taped seams capable of resisting blood-borne pathogens.When you need flexibility to get the job done, look no further than Thoro-Flex. These waterproof boots feature a flexible, slip-resistant outsole with a SHOCK ZONE footbed for all day comfort.