A survey and analysis of girls bra wearing condition

Breast development is a vital part of reproduction in the human female, The development and kinds of breast changes that take place are directly related to age. Women and girls are very different physiologically and psychologically, in order to guarantee the normal development of breast, we need to design special bra for girls, so subdividing bra market is necessary. But in the domestic market, companies that produce girls' underwear are few in numbers, and there are not any company that specializes in producing and designing girls' underwear. In order to design good bra, we had made a questionnaire survey to 200 girls whose age was from 13 to 18 in Xi'an. The influence of bra design, wearing comfort and consuming activities are analyzed. The girls like design factors such as color, style and decoration technique, which are summarized through mathematical statistics method. The three main sensorial discomfort factors with the bra are shoulder straps dropping off, band elasticity and shoulder straps digging into body. Comfort, size and quality are the most important factors that influence purchase decisions. these results could serve as reference for underwear company exploiting girls underwear market.