The purpose of this study was to set up sizing system for knit trainning wears. Sample size was 198 females and their age range was from 15 to 24 years old. The body types for sizing system for knit trainning wears were divided by height and drop values. The results were as follows. 1. The height could be divided into three groups and they covered 97.5%. The Short(152cm) covered 27.8%, the Regular(160cm) 51.0% and the Tall(168cm) 18.7%. 2. The Medium hip(drop value 6) and the Large hip(drop value 12)had the high coverage rate of 45.5% and 46%, and the Small hip(drop value 0) had the low coverage rate of 8.6%. 3. For sizing system for knit trainning wears, the intervals of bust girth and hip girth were 5cm and 4cm. In the same size of bust girth, the intervals of hip high girth and waist girth were 1cm, the intervals of back waist length and sleeve length were 2cm and the interval of slacks length was 4∼5cm according to three height groups.