Collar, sometimes denoted as "Collared" as an adjective in the phenotype, is a common marking that creates a thick band around the Dracovix's neck. The minimum size that Collar must present is a narrow band around the neck. The maximum heterozygous size is a band width that is half of the Dracovix's length, which can be moved up or down the whole neck from the back of the head to the top of the shoulders. In homozygous form, the Collar may be so wide as to fill up the entire range and may extend to cover the front legs.

Collar may have a hard or soft edge, but must stick to one style of edge on both sides.