Carolina Women's 6 Inch Alloy Toe Metatarsal Guard Safety BootsThe perfect boot to wear for protection anywhere from the farm to the factory Full grain leather upper Aluminum Toe weighs less than steel and meets the ASTM Standards for compression and impact testing rating of ASTM F2413 18. Electrical Hazard Footwear tested by an independent lab that can withstand applications of 18,000 volts at 60hz for one minute without leakage. Metatarsal Internal MetGuards provide flexible protections and increased comfort.