Generally, the trademark is printed directly on the shoes when they leave the factory. As for the finished products now, it depends on how much inventory you have. If the quantity is large, you can contact the manufacturer in this area to help you print it. If the quantity is small, I suggest you replace the built-in insole. Even if there are ones that are directly stamped, consumers will feel very uncomfortable if their feet are stained while wearing them. It is still recommended that you contact the shoe manufacturer. They are more experienced and will tell you the correct treatment method.