This boot is proudly made in the USA, and one of Red Wings' best. Made with full grain leather, this boot is Gore-Tex waterproof, and has a Dual Density Supersole®. Model: 604 Full grain, waterproof Nutmeg Ebbtide Leather Comfort Force foot bed Fiberglass shank Dual-Density Supersole® Welt (sole is stitched to boot) Gore-Tex waterproof membrane The Aztec Supersole® 2.0 is rated "Better" for slip resistance, is "Best" for use with chemicals, oil/gas, is "Best" against abrasions, "Good" handling heat, and is non-marking