The baby's special soft Velcro is used in the neck and chest, a plastic closure is added to the neck to prevent the cat from escaping after get rid of the Velcro. halter xsmall dog small puppy harness training hiking The harnesses are made with easy-to-secure Velcro, which makes outfitting your cat simple. it's a soft mesh material that doesn't suffocate nor overheat her when hot. Two heavy D rings connect you and your pet when you are in walking, running, jogging or hiking. Take your cat's girth measurement snug against her fur, and then add 2 inches to 3 inches to that measurement for comfort.