Open your hand and place a tape measure around your base knuckles (do not include the thumb). Now make a loose fist and measure the circumference:
If you do not have a tape measure at your disposal, you can use a thread to take the measurement and then determine the length of the thread using a ruler.
Fabulous saddle pad. Great with custom saddle and fits my jumper perfectly ! Highly recommended. Will be purchasing another - different colour. Thank you!