The best way to determine collar size is to use a string & wrap it around the dog's neck. Hold snug but not tight (you should be able to slip 2 fingers in between the string and the dog's neck). Mark with your finger or marker, then lay string next to measuring tape. Always round up to nearest inch.
To further help you determine collar size, see weight guide below:
Collar Size Chart Small 10"- 15" (15-35 lbs.) Medium 13" - 20" (30-65 lbs.) Large 16" - 26" (60-120 lbs.)
Note: If your dog falls in the crossover weight (i.e. 60-65 lbs.) the correct collar size will be best determined by following the steps above to measure your dog's neck.
* If you are still not sure which size will work for your dog, please call us at 970.870.6164 Ext 450--we will be happy to help you out.