The right vest is an important addition to any service dog and owner team to make sure the dog is doing its job perfectly. Unlike typical collars, a service dog vest provides more control so you can keep your dog safe while letting other people know the dog has a special job. Good vests need to be comfortable and durable. Solid, padded materials like nylon can resist tears and water without being too heavy or awkward for your dog. For the best results, choose a service vest that sports a large top handle or D-ring attachment for extra control when necessary.