Model Height Weight  Size 1 5' 7" / 170cm 143lbs / 65kg S 2 5' 9" / 178cm 160lbs / 72.5kg M 3/Shown 5' 9" / 178cm 194lbs / 88kg L 4 5' 11"/ 180cm 176lbs / 80kg XL 5 5'12" / 182cm 209lbs / 95kg XXL   Please use this info as a general guide as measurements are approximate. Size Shoulder Chest S 18.5" / 47 cm 44.5" / 113 cm M 19.3" / 49 cm 46.5" / 118 cm L 20.1" / 51 cm 48.4" / 123 cm XL 20.5" / 52 cm 50.4" / 128 cm XXL 20.9" / 53 cm 52" / 132 cm Size Sleeve Length S 9.4" / 24 cm 28.7" / 73 cm M 9.8" / 25 cm 29.1" / 74 cm L 10.2" / 26 cm 29.9" / 76 cm XL 10.6" / 27 cm 30.7" / 78 cm XXL 10.8" / 27.5 cm 31.1" / 79 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. **