Take on the work day wearing the Avenger Work BootsThresher AT with no exposed metal and security friendly. Aluminum alloy safety toe lace-up work boot with waterproof membrane that meets or exceeds ASTM F2413-18 impact/compression 75 lb and EH standards for safety toe protective footwear. Leather upper. Synthetic lining and insole. Slip resistant rubber outsole meets MARK II oily wet rating of .38.