Flat lay measurements in description, chart is below.
The size shown online is matched to the chart (not always the same as the tag). Vintage sizing is all over the place, so go by the numbers for the best fit.
What are flat lay measurements?
Flat lay measurements are taken with the garment laid flat on a surface. Bust (pit-to-pit), waist, and hips are measured straight across and then doubled to show full circumference. These line up with the size chart below.
Other details like inseam, rise, sleeve length, and hems are listed as-is in the description.