Chest: Measure all round your chest just below your armpits.
Waist: Measure round your waistline, where your trousers would button up
Height: Your natural height.
If you fall between the sizes, go for the larger of the two
Certified Organic Cotton Classic T-Shirt, 155g/m2. Wash cool, hang dry. GM free. Not tested on animals. Does not contain animal-derived products. Printed in the UK with low waste printing tech. Made in a renewable energy powered factory audited for a wide range of social and sustainability criteria.