Georgia Boot Wedge 6in Work Boots - Men's Medium Brown 12. The unlined upper is crafted from incredibly durable SPR leather. Its 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" 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. Specifications for Georgia Boot Wedge 6in Work Boots - Men's: Manufacturer: Georgia Boot Gender: Male Age Group: Adults Boot Shaft Height: 6 in Color: Brown Fastener/Closure Type: Laces Activity: Work Footwear Closure: Laces Fabric/Material: Full-Grain Leather Insole Material: Polyurethane Water Resistance Level: Waterproof Footwear Upper Fabric/Material: Leather Features of Georgia Boot Wedge 6in Work Boots - Men's Unlined Steel shank Oil- and slip-resistant polyurethane outsole AMP (Advanced Memory Polyurethane) insole SPR full-grain leather Milled Brass Hardware (extends life of the laces) 6 Inches in height ASTM F2892 electrical hazard standard Goodyear welt construction Pig skin lined padded tongue for added comfort Package Contents: Georgia Boot Wedge 6in Work Boots - Men's Georgia Boot GB00356-120M: Wedge 6in Work Boots - Men's Medium Brown 12