I ordered the sunset brachiosaurus silhouette design. First of all, the design is awesome. My daughter has been obsessed with dinosaurs since she first laid eyes on them and has been adamant that she is going to be a paleontologist since 2-3y. It's always nice to find new dinosaur designs in feminin...e cuts. I usually get her shirts from the boy's section, but she's starting to become uncomfortable with being mistaken for a boy. ANYWAY, I feel like Gap's tops in little girls sizes pretty TTS, if not a little loose. My daughter is 6 1/2, approx. 55lbs, 49"-50" tall, chest 22"-23", waist 21"-22", hips 25"-26". The size small/6-7 fit perfectly. The length and fit were exactly how I would like it to be.