True to size. Size 2T is for average 2-3 year-old girls. Size 3T is for average 3-4 year-old girls etc. If she is between 2 sizes, choose the bigger size. It's easy to greet summer with a smile wearing this colorful and cheerful set! Adorned with flamingo and flowers in lovely colors, this set guarantees a pretty and refined look! Soft, cheery and bright, this flamingo set will layer her in soft fabric with an adorable and cute flamingo embroidered on top and leggings to match! It's a flamingo must-have! Great for Summer/Spring outings, birthday parties, portraits, & everyday wear especially for her trip this Summer! Hand wash cold. Hang dry. Do NOT bleach.