The first flight attendant uniforms were designed to be durable, practical, and inspire confidence in passengers. In the 1930s, the first female flight attendants dressed in uniforms resembling nurses' outfits.[29] The first female flight attendants for United Airlines wore green berets, green capes and nurse's shoes. Other airlines, such as Eastern Air Lines, actually dressed female flight attendants in nurses' uniforms.
Perhaps reflecting the military aviation background of many commercial aviation pioneers, many early uniforms had a strongly military appearance; hats, jackets, and skirts showed simple straight lines and military details like epaulettes and brass buttons. Many uniforms had a summer and winter version, differentiated by colours and fabrics appropriate to the season: navy blue for winter, for example, khaki for summer. But as the role of women in the air grew, and airline companies began to realise the publicity value of their female flight attendants, more feminine lines and colours began to appear in the late 1930s and early 1940s. Some airlines began to commission designs from high-end department stores and still others called in noted designers or even milliners to create distinctive and attractive apparel.
Since the 1980s to present, Asian airlines, especially national flag carrier ones, usually feature the traditional dress and fabrics of their respective country in their female flight attendants' uniform. It was meant as a marketing strategy to showcase their national culture as well as to convey the welcoming warmth and hospitality. For example, Thai Airways flight attendants are required to change from their corporate purple suits into traditional Thai costume prior to passengers boarding.[30] While the uniform of Garuda Indonesia female flight attendants is a modified kebaya, inspired by the traditional batik motif of Parang Gondosuli, the motif is called Lereng Garuda Indonesia.[31] Malaysian. Singapore Airlines flight attendants wear batik prints in their uniform. Vietnam Airlines flight attendants wear red áo dài and Air India flight attendants wear a Sari on all passenger flights.
Flight attendants are generally expected to show a high level of personal grooming such as appropriate use of cosmetics and thorough personal hygiene.
Flight attendants must not have any tattoos visible when a uniform is worn. These requirements are designed to give the airlines a positive presentation.
In several airlines in the Islamic World, such as Egypt Air, Iran Air and Saudia, female flight attendants' uniforms have added a hijab to conform to the Islamic customs.