For Tibetan Spaniels, a well-fitted harness is generally preferable to a collar for walking. This breed has a relatively delicate neck and trachea, and the pulling pressure that a collar concentrates on the throat can cause discomfort or even injury over time. A harness distributes force across the chest and shoulders, which is safer and more comfortable for a small dog. Step-in harnesses and vest-style harnesses both work well, and many Tibetan Spaniels tolerate them easily once accustomed to the fitting process.
A lightweight flat collar should still be part of your Tibetan Spaniel's gear, even if you primarily walk with a harness. The collar serves as the anchor point for identification tags and can be worn at all times, while the harness is put on specifically for walks and outings. Choose a collar that is half an inch to three-quarters of an inch wide, as wider collars can overwhelm the breed's small frame and interfere with their mane-like ruff of fur around the neck.
Leash selection for a Tibetan Spaniel should prioritize a lightweight material that doesn't weigh down the dog's movement. A four- to six-foot leash made of nylon, leather, or biothane gives you adequate control without excessive bulk. Retractable leashes are generally discouraged because they offer less control in unpredictable situations and the thin cord can cause friction burns if it wraps around a leg or hand.
When fitting any collar or harness, follow the two-finger rule: you should be able to slide two fingers comfortably between the equipment and your dog's body. Too tight and it restricts breathing or movement; too loose and the dog can slip out. Check the fit regularly, especially if your Tibetan Spaniel's weight fluctuates seasonally, and inspect hardware like buckles and clips for wear.