**Model - 5' 8", 163lbs / 173cm, 74kg. Size M/W32.** Thick material may make the waistline feel 1–2 cm smaller. Please keep this in mind when sizing. Size Waist Seat XS 29.5" / 75 cm 39.0" / 99 cm S 31.1" / 79 cm 40.6" / 103 cm M 32.7" / 83 cm 42.1" / 107 cm L 34.3" / 87 cm 43.7" / 111 cm XL 36.2" / 92 cm 45.3" / 115 cm XXL 37.8" / 96 cm 46.9" / 119 cm Size Length Front Rise XS 39.4" / 100 cm 11.4" / 29 cm S 40.2" / 102 cm 11.4" / 29 cm M 40.6" / 103 cm 11.8" / 30 cm L 40.9" / 104 cm 12.2" / 31 cm XL 41.3" / 105 cm 12.6" / 32 cm XXL 41.7" / 106 cm 13.0" / 33 cm Size Back Rise Leg Opening XS 15.4" / 39 cm 15.4" / 39 cm S 15.7" / 40 cm 15.4" / 39 cm M 16.5" / 42 cm 16.1" / 41 cm L 16.9" / 43 cm 16.9" / 43 cm XL 17.3" / 44 cm 16.9" / 43 cm XXL 17.7" / 45 cm 17.7" / 45 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. **