KEEN Utility Men's Portland Puncture Resistant 6" Comp Toe Work Boot 100% Leather Rubber sole Composite toe protection Dry-lex footwear lining with hydrophobic/hydrophilic 2-zone comfort technology KEEN.DRY waterproof breathable membrane Meets or exceeds ANSI Z41 PT99 standards for electrical hazard protection from open circuits Oil and slip resistant non-marking rubber outsole