The purchase of this product is a commercial trade activity All products support the right to return or exchange within seven days without any reason. Large quantities are negotiable, inquiries are welcome! In cases where returns or exchanges are involved, the return and exchange postage is at your own expense, provided it does not affect the possibility of resale. Returned privately, refused to sign for receipt! [About size] Standard sports shoe size [Regarding Color Difference] Due to differences in individual monitor's brightness, contrast, and display settings, there may be slight color differences between the image and the actual item. [Regarding the smell] Newly manufactured shoes may have a slight glue smell, which is not related to the quality. The smell will dissipate if placed in a well-ventilated area. [Regarding After-Sales Service] If there are any issues with the shoes sold, please contact our customer service immediately to explain the situation, and we will handle it. [Regarding shipping] The default courier is Shentong Express.If you need other delivery services, please contact customer service immediately. [Regarding Quality] We will cover all costs for issues such as sole separation, adhesive failure, damage, severe color differences, and severe stains. Minor loose threads, small stains, slight color differences, and faint glue smell are not quality issues!