Men's UV top size guide - Quiksilver

Men's UV protection top - Quiksilver

Brand size	Chest circumference (cm)
XS	89 - 93
S	94 - 98
M	99 - 103
L	104 - 108
XL	109 - 112
XXL	112 - 117

To measure your chest size, place the measuring tape at the level of your armpits, at the widest point, and go around.

To measure your waistline, place the tape measure at the hollow of your waist, below your ribs and above your hips. In the deepest place.