Measuring your dog size can be done one of two ways.
Method 1: Measure the center of your dog’s neck with a cloth measuring tape. For a snug fit pull the tape measure right up to the dog’s neck with no slack. If you prefer it slightly loose then position 1-2 fingers under your measurement.
Method 2: Using your dog’s current collar measure from where the fabric meets the buckle to the current hole which they wear the collar. You can measure with tape measure or if using a fabric measuring tape you will need to make sure there is no slack in the fabric measuring tape.