Measurements on the size chart are shown in cm and reflect the measurements of the t-shirt, both vertically and horizontally.
The graphic below with the white arrows on the t-shirt show the correct way to measure a well fitting t-shirt and compare against the chart for an accurate fit.
If between sizes, we would recommend the greater size as the tees do have an athletic fit.
Measurements below are shown in CM and are the measurements of the t-shirt we provide.