Professional clothing has practicality, labeling, aesthetics and matching under the premise of satisfying professional functions. 1 Practicality: Provide convenience to the wearer and meet the conditions for protecting the human body. In the general industry and transportation industry, professional clothing must be compatible with the working environment and working conditions to ensure flexible and convenient operation for the wearer. For those who work in special environments such as the universe, polar regions, mountains, underwater, or special occupations such as fire-fighting and nuclear tests, professional clothing must provide adequate protection to all parts of the body, avoiding injury from the working environment and achieving safe operation. Requirements. 2 Marking: It can clearly indicate the wearer's occupation, position and job type, so that the insiders can quickly and accurately identify each other, so as to facilitate contact, supervision and collaboration; for the outside of the industry, can convey a service. signal. Some professional services, such as customs services, tax services, business management services, etc., represent a functional department of the state, indicating that the wearer has the power to exercise duties within his industry. The logo is represented by the color and style of the garment, as well as the apparel such as the cap badge and armband. 3 Aesthetics: Reflecting the aesthetic standards that are consistent with the professional nature, the practitioners will have a sense of professional pride and facilitate the trust of the client to the practitioner. Professional clothing achieves the desired aesthetic effect through aesthetics. For example, postal and telecommunications services give people the hope and optimistic aesthetic effect of their green color, and the railway service gives its blue color a safe and stable aesthetic effect. 4 matching: tops, pants (skirts) and caps (helmets), shoes and socks, gloves, etc. should be worn, cap badge, collar, armband.