My kids are usually 2t, 4/5t, 5/6t. I sized up to 3t, 5t, 7t. Pants worked great for everyone! I may keep just for the adorable pants. I had two issues with the top. First, the green of the tree, doesn't match the pants green, so it looks funny if you are searching for that perfect matching family photo for the holidays. The even bigger issue was size, they were too tight, even as a size up. I could get them on, but it was a deal breaker. So top is too sizes up. which is unfortunate you can't buSee full review