Leather bags easily absorb grease and oils so you need to wipe the surface with a soft cloth dampened in water. If you need something stronger, there are leather-specific cleaners as well as conditioners you can purchase. Be sure to read the instructions because different cleaners have different strengths. Use a circular motion when applying. Be sure to remove stains as soon as you can. Chalk powder can be used on organic stains by sprinkling the stain with chalk powder overnight and wipe it off the next day. Before storing your bag during the summer time, stuff it with newspaper to retain the shape of the bag while it is still in storage. Call us if you need help.