**Model - 5' 10", 158lbs / 178cm, 72.5kg. Size L.** Please use this info as a general guide as measurements are approximate. Size Shoulder Chest S 16.7" / 42.5 cm 38.2" / 97 cm M 17.1" / 43.5 cm 39.8" / 101 cm L 17.5" / 44.5 cm 41.7" / 106 cm XL 17.9" / 45.5 cm 43.3" / 110 cm XXL 18.7" / 47.5 cm 45.7" / 116 cm Size Waist Length S 34.3" / 87 cm 26.8" / 68 cm M 37.4" / 95 cm 27.8" / 70.5 cm L 38.6" / 98 cm 28.5" / 72.5 cm XL 39.4" / 100 cm 29.3" / 74.5 cm XXL 40.2" / 102 cm 31.1" / 79 cm Size Sleeve S 24.0" / 61 cm M 24.4" / 62 cm L 24.8" / 63 cm XL 25.2" / 64 cm XXL 25.2" / 64 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. **