1/2 chest width is measured from the middle of one armpit, across the thickest part of the chest, to the middle of the other armpit.
Size
S
M
L
XL
2XL
3XL
A1/2 Chest (cm)
45
48
51
54
57
60
Measuring yourself (body): Measure across your chest from armpit to armpit, then pick the size above your number for a loose fit.
Measuring a garment (laid flat): Lay a similar top that fits you on a flat surface, measure straight across from armpit to armpit, and pick the size that matches your number. No need to add anything.
