If the company has requirements for employees' image, it is best to wear formal clothes for training, because today, clothing not only has the basic function of keeping warm, but also is an important expression element of external image. Your clothing collocation is your internal intuitive response, and it also affects your personal words and deeds. Loose casual wear does not affect people's activities, conforms to the relaxed mentality, and is suitable for home leisure. So why wear professional clothes in the workplace? It's because the professional clothes are relatively low-key and don't overemphasize gender. It represents the equality between men and women in the workplace, and also represents the corporate brand that you convey to others in the workplace. It also means whether you position yourself as a professional from the outside and are willing to abide by professional norms. Therefore, if new employees want to leave a good impression on the company, they should start with dress and wear professional clothes. Formal dress will not only restrain professional behavior, but also give yourself psychology. Of course, if the company arranges outreach training, it is necessary to bring sportswear to change. This should go without saying.