Please refer to the tables here above and compare with your best fitting shirt to find the correct size for you. Lay your shirt down button up. Measure at the different location and assess the results with the tables here above to select the most relevant size. Sizes may vary slightly from shirt to shirt. In case of doubt, always take the upper size or contact us. Note: To streamline your order, please add your height and weight into the "Special Instructions" box in your shopping cart.