Chest: Please use a tape measure to measure the circumference of your chest in inches. Please add 1 if the measurement is an odd number to make it to even. Choose the size from the chart below.Shoulder: Measure distance between two shoulder seamsBack Length: measure the length at the center back from the base of the collar to the hemSleeve Length: Measure from shoulder seam to end of cuff

Size Chart
Size	Chest size	Shoulder	Cuff
S	42″	20″	5″
M	44″	20.5″	5″
L	46″	21	5″
XL	48″	21.5″	6″
XXL	50″	22	6″
3XL	52″	22.5″	6″
4XL	54″	23″	6″
5XL	56″	23.5″	6″