I can purchase a leather for shoe soles which is pretty stiff, and grain side is sanded, so I would like to know is it usable for sheats or is it maybe somehow chemically treated? Is it possible to restore shine on grain side after sanding? In the shop they say they had some wax for that,which can restore shine, so please help.I wouldnt mind if it looks like rough out, but not shure about it all.