I brought 2 for my older one and younger one. I looked at the size chart and determined the sizes. It says size 6 is for height ~44"-46", but size 6 can fit for my older kid whose height is ~52". Don't even mention about the size 10, OMG! I guess i can roll them up to fit the length if the waist sizes fit them. I really like the pants quality tho, so will keep one and get another size for the young one. Just be aware of the size when purchase.