The middle cut British Martin boots called "The Great Escape" are lined with thick cowhide. With leather as the backing, use sandpaper to make the leather surface uniform, and the solid paraffin will melt and penetrate, and play a waterproof role.
In the movie "The Great Escape" starring Steve Mc Queen, the boots Mc Queen wore were a familiar one.
The leather surface is made of leather like the genuine product, polished, then melted, and soaked in paraffin wax, so it looks slightly bumpy or rougher than ordinary suede shoes and has become. This is also a feature of M-43, please understand clearly before buying.