In order to compare the pattern sizes of toddlers` brands, the apparel size #95 and #100, #110 were surveyed, while upper body lengths, bust circumferences and waists, hip circumferences, shoulder length, sleeve length, neck circumferences of toddlers` underwears were examined. As a result, it was found that upper body lengths, chest circumferences and lower body lengths of toddlers` underwears differed more or by 2.0cm ~ 3.0cm among brands than other sizes. In case of underwear size #95, the average upper body length was 32.8cm; the upper body size of "c" brand was longest or 33.5cm, while that of "e" brand was shortest or 32.0cm. In case of size #80, the average upper body length was 36.0cm; the upper body size of "a" brand was longest or 37.0cm, while that of "e" brand was shortest of 35.0cm. Such findings may be attributable to the fact that the main customers of "a" and "b" brands whose pattern sizes are larger are middle or lower class people who tend to buy larger toddlers` apparels than their children`s actual body sizes. In contrast, "e" brand seems to target the upper class who prefers the apparels almost fitting their children`s actual body sizes.