Focusing on the outdoor delivery industry, specifically the food delivery sector, this study initiates from the cycling activities of delivery personnel. By investigating the characteristics of food couriers during their cycling duties, this research employs methods such as surveys, interviews, and experimental measurements to integrate flexible solar panels with delivery uniforms. This integration allows for continuous power supply through solar energy during the delivery process, promoting sustainability in today’s era of advocating for sustainable development. While conserving resources, the proposed design also brings convenience to the couriers. The proposed design methods and concepts provide guidance for the research and development of professional attire in the delivery industry, enhancing the convenience of professional workwear and thereby fostering the growth of the delivery sector.