All Absurd Design 'WaterCollars' are made using rot proof polypropylene webbing with adjustable sizing to give you a range for your dogs neck.
If your dogs neck is much bigger than these sizes please do contact me at : firstname.lastname@example.org and I can make you a custom sized collar.
See below for the collar sizes :
SMALL COLLAR : Fits necks 27cm - 32cm (approx.)
MEDIUM COLLAR : Fits necks 34cm - 39cm (approx.)
LARGE COLLAR : Fits necks 40cm - 44cm (approx.)
EXTRA LARGE : Fits necks 46cm - 52cm (approx.)