This Georgia Boot 6" wedge work is built in the USA with the trusted Goodyear® welt construction. The unlined upper is crafted from incredibly durable SPR leather. It's special tanning process makes it three times as strong and two and a half times more abrasion resistant than traditional leathers. The tongue is lined with pig skin and padded for added comfort and milled brass hardware extends the life of the laces. p>Inside this 6" US made wedge work boot is the AMP (Advanced Memory Polyurethane) insole. A layer of cushioning polyurethane topped with memory foam provides premium customized comfort. The foundation of this boot is comprised of a steel shank for added stability, shock absorbing EVA midsole and a slip and oil-resisting outsole. It meets ASTM F2892 electrical hazard standards for soft toe footwear.