Bick 4 Leather Conditioner accomplishes four important jobs. It conditions, cleans, polishes, and acts as a stain repellant, making it ideal for keeping leather soft while preventing the leather from drying and cracking. It is effective on all smooth, finshed leathers, including exotics. Unlike other brands, Bick 4 is a wax-free product that will not seal pores of leather thereby affecting breath-ability. Bick 4 will not darken any colorcast leather or deteriorate the stitching.