‘Do you love me because I am beautiful, or am I beautiful because you love me?’ –Cinderella


The purpose of this paper was to improve the butt lifting effect of tight jeans based on changing parameters of pattern by CAD. In the scope of research, body measurements were carried out and three kinds of hip shape (flat, normal and plump) were identified with K-Mean Cluster Analysis according to the hip convex angle. Then butt lifting effect of jeans was discussed through changing the back crutch angle and the style line angle of yoke. the corresponding sample jeans were fitted by 15 subjects of three hip shapes and evaluated by both subjects and 15 specialist people in fashion field. It was concluded that the butt lifting effect could be enhanced by increasing the back crutch angle and decreasing the style line angle of yoke.

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photo { Man Ray, Homage to D.A.F. de Sade, 1933 }