You can brush your bag from time to time to revive the material, and think of waterproofing it. Leather gets patina with time, it is a living and natural material, like our skin!
In canvas, suede, smooth or metallic leather, your bag needs Cleaning.
For canvas bags, we recommend using special textile cleaning products. Do not put your bag in the washing machine, even if it is cold, as the metal parts or the lining may bleed.
For suede leather, brush it from time to time to revive the material, and consider waterproofing it.
Metallic / smooth leather
For smooth and metallic leathers you can use moisturizing milk to nourish it (like our skin) and also waterproof it.