White straps are made of antibacterial TPU material. Compared to black straps, white straps are more likely to reveal various types of dirt and dyes in daily life. In daily use, please try to avoid staining red ink, watercolor pens, and various industrial dyes. If accidentally contaminated, it is recommended that you use daily cleaning agents such as laundry detergent and soapy water to wipe the straps and remove dirt. In addition, the Xiaomi Smart Band 8 comes with 8 retail straps, and if you need them, you can also choose to purchase the straps you like from them.