Keen Utility Men's Tacoma Waterproof Work Boot 100% Leather Made in the USA or Imported Leather and Rubber sole Left and right asymmetrical composite toes KEEN.Dry waterproof, breathable membrane Full-grain waterproof leather upper Meets ASTM F2412-11 F2413-11 I/75 C/75 EH and F1677-96 Mark II non-slip standards 100% Non-metallic construction;90 degree heel