Direct sales from the real manufacturer, you can contact customer service to visit the factory and discuss cooperation. Strong capabilities, high cost performance, all for long-term development and win-win cooperation About standard sports shoe sizes Regarding color differences, due to differences in individual monitor's brightness and contrast settings, there may be slight color differences between the picture and the actual item. Regarding the smell, freshly manufactured shoes may have some glue odor, which is not related to quality. The smell will dissipate if placed in a well-ventilated area. If you have any issues with the shoes sold after purchase, please contact our customer service immediately to explain the situation, and we will handle it. For large items, the default shipping carriers are Yousu and Shunxin Jieda, and for small items, the default carrier is Best Express.If you need other delivery services, please contact customer service immediately We will cover all costs related to issues such as sole separation, glue detachment, damage, severe color differences, and serious stains Small loose threads, minor stains, slight color differences, and faint glue smell are not considered quality issues For orders of five pairs or more, please contact customer service to adjust the shipping fee The design concept is for everyday outdoor leisure activities, with a focus on freedom, comfort, and casual fashion.