In recent years, a type of clothing form for both men and women, which is called genderless clothing, has become popular. This concept has appeared more and more frequently in peoples eyes and become a global trend. The popularity of genderless fashion is not just a style of dress, it is accompanied by a variety of social concepts and progress. This study reviews the development of genderless fashion and analyzes some of the core reasons why it has become a global trend, exploring the development of social attitudes that fashion reflects. It is mainly related to four factors: Generation Zs need for expression, non-binary gender identity, the awakening of feminist consciousness, and brand-new consumer demand. These findings help people understand the connection between fashion trends and social values, the spiritual needs of contemporary people and also provide apparel developers with a more comprehensive perspective to further recognize the core needs of consumers.