When the work gets tough the tough wear Avenger. This Composite Toe EH Insulated Waterproof Boot feature: leather upper, rubber outsole, 600 grams of Thinsulate Ultra insulation, ASTM F2413-05 PT Class 75 protective toe, compliant with ASTM F2413-05 electrical hazard standards, composite toe, waterproof. Material: Leather, Rubber.