The Black Russian Terrier's combination of size, strength, and thick neck coat makes collar and harness selection a more nuanced decision than it is for most breeds. A standard flat collar in nylon or leather works well for everyday identification and tag carrying, but it should be wide enough — at least 1.5 to 2 inches — to distribute pressure across the neck without digging into the coat or skin. Measure carefully, as the dense fur around the BRT's neck can make it difficult to judge fit by sight alone. You should be able to slide two fingers between the collar and the dog's neck comfortably.
For walking and training, a front-clip harness is often a better choice than a collar, particularly for dogs that pull. The Black Russian Terrier is a powerful animal, and sustained leash pressure against a collar can compress the trachea and strain the cervical spine. A well-fitted harness redirects pulling force across the chest and shoulders, giving the handler more control while protecting the dog's neck. Look for harnesses with adjustable straps at multiple points to accommodate the BRT's broad chest and deep ribcage.
Leash material and length matter for a dog of this strength. A six-foot leather or heavy-duty nylon leash provides adequate control and freedom for everyday walks. Avoid retractable leashes — the thin cord cannot withstand the sudden force of a 100-pound dog lunging, and the retraction mechanism provides inconsistent tension that makes loose-leash walking harder to train. A traffic handle or second grip point near the collar attachment is a useful feature for crowded environments or situations requiring close control.
Head halters are another management option for dogs that are strong pullers. These fit around the dog's muzzle and behind the ears, redirecting forward motion by turning the dog's head toward the handler when it pulls. They require a proper introduction period — most dogs initially resist the sensation — but can be transformative for handlers who struggle to manage the BRT's strength on a standard collar or harness. Never use a head halter with a retractable leash, and always pair it with a backup collar or harness connected by a coupler for safety.