This research assumes that body and fashion always conversed in the sense that one shapes the other. The human body is changing and remodeling, is modeled according to the subtle codes of every culture and time. It is a body of subjectivity, fluid, biological and social. In Brazil the strong beach culture and the overvaluation of the body have link with the bikini design through the ages. In this thesis we propose occur to understand how relationships between design of bikini and the body, in particular the body redesigned through sports, nutrition and plastic surgery in the current context of the beach culture of Rio de Janeiro. Exploratory research and field research with beach fashion designers, plastic surgeons, sellers and users of bikini have been made. The sociocultural plurality and body has enabled a more complex view of the object of research, we have reached several relationships between body and bikini design: relations of influence, dependence and interdependence. Brazil is reference in beach fashion, however is no dearth of research in the area thus making this timely research in the area of design and the fashion industry.