Please use this info as a general guide as measurements are approximate.

Size	Shoulder	Chest
36	16.9" / 43 cm	38.6" / 98 cm
38	17.3" / 44 cm	40.6" / 103 cm
40	18.1" / 46 cm	42.5" / 108 cm
42	18.9" / 48 cm	44.9" / 114 cm
44	19.7" / 50 cm	47.2" / 120 cm

Size	Length	Sleeve
36	25.6" / 65 cm	23.6" / 60 cm
38	26.4" / 67 cm	24.4" / 62 cm
40	27.2" / 69 cm	24.8" / 63 cm
42	28" / 71 cm	25.2" / 64 cm
44	28.7" / 73 cm	25.6" / 65 cm

In order to best determine fit, it may be helpful to compare our garments measurements to a similar garment you already own. Lay your garment on a flat surface and take all measurements from the outside of the garment.

to check out our Garment Measuring Guide.

** If you are still confused, you can to help you choose the size. **