Size

To Fit Neck To Fit Waist

Extra Small

20-34cm  

8-13.5"

23-38cm

9-15"

Small

 24-38cm 

9.5-15"

31-50cm

12-20"

Medium

31-50cm  

12-20"  

42-69cm 

16.5-27"

Large

40-67cm    

16-26"

62-107cm

24.5-42"