Each breech has waistband measurements in the product description. These measurements are taken from side to side when laying flat across the waistband in cms. You can use these to compare to a current pair of breeches you wear that fit you well. Please note some of our breeches are mid rise, some sit a little higher so this will need to be taken into consideration.
All fabrics have different stretch so this can affect how they will fit and some will stretch in some areas more than others.
Please note we cannot help you with how they compare to other brands sizing.
Please check our stockists page to see if there is a stockist near you to try on one or more of our breech styles as a good starting point if you have not worn QJ breeches before.