Leather is a natural material
Variances in the appearance of leather are not regarded as imperfections but rather as a sign that the leather is natural.
Look after your new shoes
Caring for leather involves a quality moisturising shoe cream to prevent the leather from drying out and becoming porous.
The best way to protect suede is to spray it, prior to wearing the shoes, with a suede conditioner and let the shoes air dry overnight.
Always keep your shoes clean, and maintain cork soles by not letting them get wet.
If they do get wet, let them dry at room temperature. Never place them close to a heat source; doing so would damage the cork as well as the leather.