Full-Grain, Oiled Leather UpperAfter 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.GORE-TEX (GTX)100% waterproof and breathable, GORE-TEX liners ensure that no water gets in, while allowing sweat and moisture to get out.Steel Toe (ST)Meets or exceeds ASTM F2413-18 I/C EH.Removable OrthoLite FootbedThree layers of varying density are combined for maximum cushioning and support. The entire footbed is made of open-cell polyurethane for better heat dissipation and air circulation.Danner Wedge OutsoleThe non-marking, oil-and-slip resistant Danner Wedge outsole provides cushioning, lightweight support, traction, and won't track debris. The soft polyurethane 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 ConstructionHandcrafted to provide a wider platform, our legendary stitchdown construction offers increased stability underfoot. Many of our stitchdown boots can be recrafted.How It FitsPortland made 503 last has a casual fit without compromising Danner's comfortable lace-to-toe construction. Fits true to size.RecraftableExtend the life of your boot with our recrafting services. This boot is eligible for a number of paid services, including part replacement, leather care and restitching. See our Recrafting page.365-Day WarrantyIf you suspect your purchase isn’t up to our unrelenting standards, or is defective in any way, we want to make things right. We offer a 365-day warranty across our entire footwear and apparel lines.