The Diamondback work boots has a Goodyear welt construction stitched sole that provides maximum strength, durability and the rubber outsole provides great oil and slip resistance. The inside lining is composed of light and soft fabric for added comfort. It meets ASTM F2413-05 Standards. Because of the wide width, it allows for extra foot room and the contoured fiber foot bed with steel shank insert is great for shock absorption and comfortable support. Padded leather tongue and collar for great comfort. Steel toe for ultimate protection.