Size chart is for reference only; there may be a little difference with what you get. Color may be lighter or darker due to the different PC display. Size: Baby girl knit romper with overalls pant set, infant spring clothes girl, fit for newborn fall clothes girl 0-3 months, 3-6 months baby clothes for girls, baby girl outfits 6-9 months, infant girl outfits 9-12 months, 12-18 months baby girls clothes.