Model is 5' 10"/ 178cm and 174lbs/ 79kg. He wears a size 40.

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

Size	Shoulder	Chest
36	Free	43.3" / 110 cm
38	Free	45.3" / 115 cm
40	Free	46.9" / 119 cm
42	Free	49.2" / 125 cm
44	Free	51.2" / 130 cm

Size	Length	Sleeve
36	29.1" / 74 cm	29.5" / 75 cm
38	29.9" / 76 cm	30.3" / 77 cm
40	30.7" / 78 cm	31.1" / 79 cm
42	31.5" / 80 cm	31.9" / 81 cm
44	32.3" / 82 cm	33.1" / 84 cm

In order to best determine fit, it may be helpful to compare our garment’s 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.

Click here to check out our Garment Measuring Guide.

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