Garmin Alpha Kydex Holster (Alpha 100, 200 and 300).

• We recommend utilizing girth measurements over weight when selecting vest sizes.   While weight is sufficient in most cases, girth measurements tend to be the most accurate.  The illustration below will show you where to measure.    
• NOTICE for Overlap Sizing-  If you have a dog that falls in between on sizing our general recommendation is for wider chested dogs to go up a size and slender built dogs go down a size.
• These are the typical sizing guidelines.  99% of dogs will fit into these standard sizes, however some dogs do have unique structures and may need a custom fit.  If your dog does not fit into any sizes outlined below, please send us the measurements described at the bottom of the page and we will make a custom vest for you. 

Click here for instructions on Measurements