The chest band of the shirt/dress is supposed to fit tightly. Therefore please make sure to take your child's chest measurement and compare it to the chest band measurements in the table. Please also consider embellishments in terms of ribbons affect the elasticity of your knit fabric and therefore you need to sew in a zipper. This also means, you need to add 2 cm (7/8 in.) in width to the chest band before cutting the fabric or to choose the next bigger size !!
Pattern: Babydoll "Summertime", Short ULI