Why do some travel shoes turn yellow after brushing? How to prevent it?

The replacement of travel shoes is the cause of aging. Usually pay attention to the protection of sports shoes: sports shoes should be cleaned regularly. When cleaning smooth sports shoes, clean the dust and stains on the leather surface with a dry soft cloth or a wet soft cloth; When cleaning white leather shoes, you can use detergent or detergent to wipe them, but not bleach. If you clean your sneakers with a soft brush, brush them lightly, not too hard. When cleaning sports shoes, you should avoid soaking in water, exposure to sunlight or high temperature drying to avoid aging, deformation, fading and mesh breakage. If it turns yellow, you can wash it with toothpaste before wearing it. After washing, the toothpaste will turn white.