The "Collie Cut" is defined as a Tapered Bi-Phasal Follicular Arrangement. It is characterized by strict grooming maintenance on the lateral planes (sides) to facilitate communications headset seal, while permitting controlled growth at the posterior nape ("The Tail") and textured layering on the crown.
Visually, it presents as "Garrison-Compliant" when viewed frontally or while wearing headgear, but reveals "Field-Expedient" length when the neck is exposed. It is rugged, matte-textured, and specifically designed to interface with ballistic helmets without snagging.