:: Dan Post Mens All Over Oily Leather Gravel Nutty Mule Work Boots Product 75/503 Dan Post Mens All Over Oily Leather Gravel Nutty Mule Work Boots Dan Post Men's Work Collection Gravel Nutty Mule All Over Oily Leather Work Boots. DP68526, 12" Gravel Nutty Mule Leather Shaft, Gravel Nutty Mule Western Stitch Leather Foot, Null, V-Bar Rubber Work Sole. MADE IN THE USA! Dan Post work boots keep moisture at bay, inside & out! All natural leather upper. Famous Dan Post cushion insole comfort. Oil-resistant