**Model - 5' 10", 159lbs / 178cm, 72.5kg. Size L.** Please use this info as a general guide as measurements are approximate. Size Shoulder Chest S 18.9" / 48 cm 38.6" / 98 cm M 19.3" / 49 cm 40.2" / 102 cm L 19.7" / 50 cm 41.7" / 106 cm XL 20.5" / 52 cm 43.3" / 110 cm XXL 21.3" / 54 cm 45.3" / 115 cm Size Sleeve Length S 22.4" / 57 cm 27.2" / 69 cm M 23" / 58.5 cm 28" / 71 cm L 23.6" / 60 cm 28.7" / 73 cm XL 24.2" / 61.5 cm 29.3" / 74.5 cm XXL 24.8" / 63 cm 29.9" / 76 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. **