Cat vests or harnesses are a device that fits around your cat’s neck and back. This further connects to a leash. Vests in between are critical, as attaching the straps onto your cat’s collar is unsafe. That’s because, unlike dogs, cats have soft throats. Therefore, applying too much pressure on the cat’s throat may cause internal damage. You’ll find two major types of the vest – the classic H style or the vest. The H style harness comes with a few straps that go around your cat’s neck and waist. This distributes pressure evenly and helps you use the vest easily. However, the vest style clips on her back.