SIZING INFO | RJC | Girls | 2pc Set | SIZING FACTS | please do not use Amazon's generic sizing info | these are the approx. measurements of average INFANT and TODDLER girls' bodies >>> HEIGHT - (6 months) 22"-25" (12 months) 26"-29" (18 months) 30"-31" (24 months) 32"-33" (2T) 33.5" (3T) 36" (4T) 38.5" >>> WEIGHT - (6 months) 8-14 lb (12 months) 15-21 lb (18 months) 22-25 lb (24 months) 26-28 lb (2T) 29 lb (3T) 33 lb (4T) 35 lb | for best results - machine wash cold | delicate cycle | mild soap | line dry | cool iron | please contact us if you need sizing assistance. Mahalo!