Size 3/4 T. My little one is quite tall for her age and the outfit was a bit big but true to size! I wanted her to have room to grow! I was looking for an outfit for my granddaughter for Valentine's Day. I wanted something that was for the day but that she could wear afterwards! I found 3 different outfits and let her pick. This is the one she selected! It was well made and absolutely adorable! 5 Stars! Hope you find this review and pictures helpful! Very nice quality! Very similar to the "C" children's brand but does not run small!