Leather is a natural material and is bound to have colour variations and marks on it. These marks add a character to the leather and are not classified as defects. Some types of leather form a Patina with use over time. This is not a defect; it only adds value to the appearance of leather giving it a vintage feel.
How to Clean
Remove dirt build-up of the product by wiping down with a cleaner made specifically for the leather in question.
Take adequate care of the hardware while cleaning. Be aware of the type of coating on the hardware. Some products may have precious metal plating over it.
How to Condition
Think of conditioning as moisturizer for your leather, which will dry out over time. To prevent flaking and wrinkling, dab a dollop of conditioner on a soft cloth and rub gently all over.
Try mink or neatsfoot oil, which simulate and supplement the natural oils of leather. Leave on for 10 minutes, then wipe off the excess. Dry thoroughly in an airy room.
Condition every month or so to keep your leather looking its shiny best.
How to Waterproof
Leather can never entirely be waterproof, so avoid direct contact with water.
You could use a spray protectant on the bag which is virtually invisible.
Let water spills dry naturally. Do not use high heat measures like hair dryers as it will crinkle the leather beyond repair.
How to Store
Store your bag in the dust bag provided and fill it with stuffing to maintain its shape. (use butter paper. Never use newspaper, as it will smear)
Keep the dust-bagged product in its original box, along with packets of silica gel so that your bag doesn't get damp.
To avoid growth of mold, air it once every two weeks.
Everyday use of your bag will wear it out, so switch things up every month.