Rivet ST is a low-cut, pull-on-boot with a steel-toe, offering additional insulation to protect against accidental contact with an electric charge. Technical and safety features: Moisture wicking lining removable Double heel-loops EVA comfort insole Slip resistant sole reduces the risk of slips and falls on hazardous surfaces Additional insulation protects against accidental contact with an electric charge Standard: ASTM F2413-11 MI/75 C/75 EH