This research aims at establishing a drafting formula of straight pants for Vietnamese femals aged from 18 to 24 years old by draping method on live models. The study was conducted on 63 femals students who have measurement with waist girth range from 66 cm to 69 cm, hip girth range from 84 to 87cm. Research results show the existence of two different body types in the same size. These two body types use the same drafting formula which was established in the research. Factor analysis, K-mean cluster analysis, discriminant analysis, t-test to classify somatotype; linear regression between body measurement and partial pattern measurement during developing drafting formula were accompleted by SPSS V21.0. The results are reliable and meaningful in research and application in pattern design for Vietnamese garment industry
