Size	S	M	L	XL	2XL	3XL
Chest (cm)	84-89	90-95	96-101	102-107	108-113	114-119
Waist (cm)	73-78	79-84	85-90	91-96	97-102	103-108

How to take your own measurements:

CHEST: Take the measure evenly around the fullest part under the arms.
WAIST: Take the measure around your natural waistline near the belly button.