On the old St. Crispin's website, there was a guide to caring for shoes. It recommended using only polish such as Saphir or Kiwi for regular care, saddle soap when shoes are dirty, and pure turpentine to remove old wax. That's consistent with what Mr. Carr has said to me and others at trunk shows. When I talked to him, he didn't seem to have any strong preference for any particular polish and was used Kiwi to shine my shoes.
1/27/14 at 11:17am