For the Chinese Crested, a harness is almost always preferable to a collar for walking purposes. This breed has a delicate trachea and slender neck, and the pressure from a collar during leash walking — especially if the dog pulls — can cause coughing, gagging, and long-term tracheal damage. A well-fitted harness distributes force across the chest and shoulders, protecting the neck while still providing secure control.
Step-in harnesses and vest-style harnesses are both popular choices for this breed. Step-in models are easy to put on without pulling anything over the dog's head, which some Chinese Cresteds find stressful. Vest-style harnesses offer additional coverage that can provide a small amount of warmth for the Hairless variety and help protect exposed skin from friction and environmental irritants during walks.
A lightweight collar should still be worn for identification purposes even if a harness is used for walks. Choose a collar made from soft, smooth material — padded nylon or rolled leather works well — to minimize irritation on the Hairless variety's sensitive skin. The collar should fit snugly enough that it cannot slip over the head but loosely enough that you can comfortably slide two fingers beneath it.
Leash selection should prioritize lightweight materials that will not weigh down or unbalance a toy breed. A standard four-to-six-foot leash made of thin nylon or lightweight leather provides adequate control without excess bulk. Retractable leashes are generally not recommended for toy breeds because the sudden stop mechanism can jerk a small dog off its feet, and the thin cord can cause injuries if it wraps around exposed skin.