Our proprietary blend of rubber gives this wedge work boot great heat, chemical, abrasion, slip and oil-resisting properties. Georgia Boot AMP LT Wedge Waterproof Moc-Toe Work Boot The upper is made from our premium barnyard proof SPRâ„¢ leather. The interior of this black 6 wedge work boot is equipped with our guaranteed waterproofing system and lined with a soft performance mesh. It meets ASTM F2892 electrical hazard standards for soft toe safety footwear.