High quality Dubbin Leather Care. It softens, preserves and waterproofs!
I recommend to apply this product ones a mond to keep you leather bags and accessories waterproof and in a perfect condition.
 
Instructions: Apply a small amount of dubbin to a cloth and rub evenly over leather. The dubbin will leave a slightly oily film on leather (important for repelling water and dirt) and as such should be applied sparingly. (Ones a mond)