I got these shirts in for my daughter's school uniform. I ordered the 2 pack of tidal/sandy in size 5 and both shorts said size 5 on the tag. However, the navy (tidal) shorts fit like a full size smaller. The quality of the shirts is great and the colors are exactly what we are looking for, but I had to return them because my daughter could only wear one pair. I reordered the colors separately and went a size up for the navy ones, so hopefully that will work. Just be aware when ordering the 2 pack of the different colors that the sizing might be different.