Each leather is and ages quite individually, because leather is a natural product. Fine deviations in terms of color and texture is quite normal. This unique behavior underlines the natural origin of leather.
Even though leather products age individually over time and tell their own story, proper care is absolutely recommended for the longest possible life expectancy.
For the cleaning of the leather a cloth moistened with water in combination with proper rubbing is sufficient. Afterwards, a dry cloth should be used to absorb any remaining moisture. For cleaning the inside of the treat bag, proper tapping and occasional cleaning with a damp cloth is sufficient.
The treat bag should not be treated with harsh detergents, nor exposed to intensive contact with water, such as bathing or swimming.