Maintenance and Cleaning
Like most natural fibers, those used in my bags are pretty tough and resilient, but mishaps happen. (Ask me about the hot chocolate incident.) Try to use a minimalist approach to cleaning.
Cork: Not quite as tough as a high quality leather but it is close. Clean dirt away using a damp cloth (with or without mild detergent). Minor scratches will self heal. Big cuts, not so much.
Wool: This fabric is pretty stain and water resistant. For liquid spills, blot them up with a clean cloth as they happen. For dirt and grime, try these steps in the following order of escalation: a standard lint roller, pat the stain and blot with water and dilute detergent, and finally (ugh) a chemical spot remover or professional dry cleaner. (The disclaimer: Always test any cleaning method first in an inconspicuous area.)