Bought a size 7-8 for my 6 year old daughter, she is slim and tall and a size 5-6 fits her short in length but good on top. I bought both sizes to see which would look best and kept the larger size 7/8 and went down to her ankles. The material is similar to that of a t-shirt, so perfect for the warm weather here in California. I bought Blue and Fuchsia, let's see how they wear out. I recommend a gentle cycle and hang dry to preserve the colour.

UPDATE: A few months later my daughter wears these two dresses almost every day, I toss them in the wash with everything else when needed and they are still amazing. I just ordered another set in a different color, love them. My daughter loves her more. Thank you to the sellers for providing us with well-tailored, adorable but not offensive little girl dresses. They work for the church, they work for fun. You can wear a shirt underneath, you can put a cardigan on top. Super flexible. As another