**For decorative wear only. Do not attach leash or use as a restraint. **
Small: Neck 13.8″ Width 1.4″
Medium: Neck 15.0″ Width 1.5″
Large: Neck 17.7″ Width 2.0″
Important Sizing Note: The following measurements are the dimensions of the actual product, not of the pet they fit. After measuring your pet, make sure all measurements fit within the following dimensions (with a little room to spare in the chest and neck).