Model is 5'10"/ 178cm and weighs 136lbs/ 62kg. Wears a size 38. Please use this info as a general guide as measurements are approximate. Size Shoulder Chest 36 16.7" / 42.5 cm 40.9" / 104 cm 38 17.3" / 44 cm 42.5" / 108 cm 40 17.9" / 45.5 cm 44.1" / 112 cm 42 18.5" / 47 cm 47.2" / 120 cm 44 19" / 48.5 cm 48.8" / 124 cm 46 19.6" / 50 cm 50.4" / 128 cm Size Sleeve Length 36 24" / 61 cm 27" / 68.5 cm 38 24.6" / 62.5 cm 27.7" / 70.5 cm 40 25" / 63.5 cm 28.5" / 72.5 cm 42 25.6" / 65 cm 29" / 74 cm 44 26" / 66 cm 29.9" / 76 cm 46 26.4" / 67 cm 30.5" / 77.5 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. **