What is the main physical feature driving the argument that the Boykin Spaniel's covering is technically 'hair'?
Answer
Its minimal shedding profile
The minimal shedding profile is the main feature driving the 'hair versus fur' argument, often attributed to the coat favoring a longer anagen (growth) phase.

Related Questions
What is the expected texture of a Boykin Spaniel's coat according to the breed standard?Where is the feathering, the longer flowing sections of coat, primarily located on a Boykin Spaniel?What is the main physical feature driving the argument that the Boykin Spaniel's covering is technically 'hair'?What essential function does the coat's density provide for a Boykin Spaniel bred to work in water and marshlands?Compared to breeds like Retrievers or Huskies, how does the Boykin Spaniel's shedding typically compare?What combination of factors makes the Boykin's coat a successful compromise for its historical workload in the humid South Carolina low country?What grooming requirement is non-negotiable due to the presence of feathering on the legs, ears, and belly?If a Boykin Spaniel is highly active, what is the recommended minimum brushing frequency?What tool sequence is often recommended to ensure brushing reaches the skin to prevent matting underneath the top layer?What negative consequence can result from shaving a Boykin Spaniel completely down to the skin?