This is a standard, slim fit men's T-shirt. To choose the correct size for you, measure your chest circumference and reference the size chart below to select which size best suits.
How to measure your chest:
Stand up straight with your arms hanging down in a relaxed, natural pose. Measure around the fullest part of your chest. Tight up under the armpits and over the shoulder blades. Make sure the tape is flat across the back.
I wear this t-shirt all the time. It’s a great design from a company with great ethics.