This outfit is ADORABLE. I bought it for my daughters first Valentines Day. I knew this brand ran small so I ordered a 9-12 month (she is normally in 6-9 month clothes). I washed it first and it really shrunk up (as this brand always does) and it fits her just right now, but probably won't fit for very long. My daughter is only 16lbs (30% for her age) and just turned 8 months. I should have probably gotten the 12-18 month so that it would fit for longer. This outfit is way too cute to not buy, just remember to get a bigger size :)