In order to clarify the influence of forms of brassieres on beauty of clothing bust silhouettes, a visual impression of the bust clothing silhouette formed by C70 size brassieres in wearing under clothes was studied. Subjects (female college students) wore twenty-three types of brassieres (limited to C70 size) with different cup shapes under a pullover (of knit material) and their digital images of front, 45°-angled and side views were photographed. Then these images were evaluated by visual sensation of female college students using SD (semantic differential) method. As the result, the concept of “beautiful bust clothing silhouette” was able to be defined by a silhouette that has round, soft, natural and feminine feelings, without wrinkles on clothes and not showing the shape or line of the brassieres through the outer clothing; for example, the unevenness of the lace and seam. And it was found that the ideal shape of the cup is a three quarter cup consisting of seamless or three pieces (3 mai-hagi).
