Measure your Dogs Neck
Have your dog sit in front of you and using a soft tape measure or piece of string do the following:
Loosely measure the neck where the collar would normally sit sliding two fingers between the dog's neck and measuring tape. Adding the two fingers should make the collar size about 2" larger than the dog's neck size (maybe closer to 1" on very small dogs.)
Take the neck size and see if it fits within one of our standard size ranges.
Standard Sizes and Breed Examples
These are some general recommendations based on dog breeds. Please measure your specific dog before ordering to ensure correct fit.