This is a grain leather that has been slightly brushed on the surface to create a very fine velvet-like appearance. The texture of nubuck is finer than suede.
About Work Boots:
Work Boots are boots designed to stand heavy wear, protect the feet, and provide high traction. Work Boots are generally made from sturdy leather uppers and non-leather outsoles with protective features such as steel toes or ankle guards. Work Boots are commonly used for protection in industrial settings, construction, mining, and other workplaces.
