A dog harness is a type of pet accessory designed to secure a dog while walking or exercising. Unlike a collar, which wraps around the neck, a harness fits around the dog's body, distributing pressure more evenly. This can help prevent injury, especially for small or strong dogs that may pull on the leash. Harnesses come in various styles and sizes, catering to different breeds and activities. Some are designed for everyday walks, while others are made for specific purposes, such as service dogs or hiking. Choosing the right harness can enhance comfort and control during outdoor adventures.