Here’s a clean copy-paste version of the size guide:
Size
Shoulder Width (cm)
Chest Width (cm)
Length (cm)
Recommended Height (cm)
S
41.5
46
64
155–160
M
43
48
66
160–165
L
44.5
50
68
165–170
XL
52
70
170–175
XXL
47.5
54
72
175–180
XXXL
49
56
74
180–185
XXXXL
51
59
77
185–190
Sizing Note: Measurements may vary by 1–2 cm due to manual measurement. Compare these measurements with a shirt you already own for the best fit.
Measurement Guide
Approximate Chest Circumference