How to find your size
Sizes mean nothing!! One manufacturer's size 8 is another one's 12. UK sizes look the same as US, but they're not. Because US sizing has changed over the years, finding your size in vintage clothing can be a challenge. But armed with your accurate measurements, you can decipher any sizing system.
What you'll need – A tape measure and a full length mirror. Take measurements undressed or in lightweight clothes. Pull the tape measure snug, but not too tight. Keep your arms at your side and have a friend take the measurements, for the best results. And don't slouch! Stand up nice and tall.
Measure around the shoulder blades, under the armpits and over the fullest part of the bust.
Find your natural waistline and measure.
Measure the fullest part of the hip (usually about 7-9 inches below the waist)