Full-Grain, Oiled Leather Upper After incorporating oil into the tanning process, we take the oiled, full-grain leather and put it through a series of rigorous testing to ensure its strength and durability. This form of leather is more resistant to water and other liquid damage and requires less maintenance over time. Unlined Leather Upper Lighter weight with cool comfort in warmer temperatures, our unlined leather boots will mold perfectly to your foot. Electrical Hazard (EH) Protection Meets or exceeds ASTM F2892-11 EH. Electrical hazard (EH) footwear is manufactured with non-conductive electrical shock resistant soles and heels. Danner Wedge Outsole The non-marking, oil-and-slip resistant Danner Wedge outsole provides cushioning, lightweight support, traction, and won't track debris. The soft rubber compound is designed for maximum comfort for long days on smooth indoor surfaces, such as concrete and wood. Not recommended for daily use on asphalt. Stitchdown Construction Handcrafted to provide a wider platform, our legendary stitchdown construction offers increased stability underfoot. Many of our stitchdown boots can be recrafted.