Measure around the fullest part of your chest, keeping tape firmly under your armpits and around your shoulder blades.
Tip: For the most accurate results, measure yourself in your undergarments.
If your measurements are in between those listed in the size chart, pick the next larger size.
![](https://www.fruit.com/on/demandware.static/-/Sites-fruit_us-Library/default/dw26a31896/images/templates/size-guides/300x620/sizechart-men_undershirt.png)