Measurements are from buckle to buckle, you will need to allow an extra 1" compared to your normal girth size because of the fleece liner.
If the size you need isn't instock please see here - as part of the core range this can be ordered with delivery in 3 to 4 weeks.
The asymmetric girth
This provides maximum clearance behind the elbows as being cut back on one side, the clearance is greater compared to the anatomic shape. Suits big shouldered and big moving horses.