Model 1 wears a XL. She is a size 16 and 181cm tall.
Model 2 wears an 2XL. She is a size 18-20 and 163cm tall. Model 3 wears an 2XL. She is a size 18 and 178cm tall.
We always recommend using your measurements to find your perfect fit. Number sizing differs so much between brands that it's difficult to calculate on that alone. In our experience, if you are between sizes or unsure then it's best to size up.
Every size in every one of our products has been tried, tested and tailored on real bodies — we don't just 'upsize' our patterns.