I agree with Tobus, though new to the forum I'm not new to the world of leather [law enforcement 26 yrs]. I had Donnie Wyvern of Wyvern Leatherworks make me a brown day sporran in the US Army insignia [full eagle not lone star]. He advised to let the sporran air dry the just shine it! I contacted Robert MacDonald of west coast kilts in Canada due to his service in the Seaforth Highlanders of Canada. He told me the same thing Tobus stated you want something that will seal and protect the leather while allowing it to breathe. He recommended neutral shoe polish as brown polish may darken the leather, much like a shoe apply polish let sit a few minutes then buff with a brush and finish with a soft rag. He closed by saying "don't do what some strange people do and spit shine your sporran. Nobody wears a spit shined sporran." Hope this helps.