This is a panic harness from the popular dog gear manufacturer, Hunter, in XS-S size, designed to prevent escapes. It's reliable and prevents even dogs that are prone to slipping out or are physically adept from escaping. Removing the third loop at the rear allows it to be used as a regular harness. This popular item is often sold out online, making it difficult to obtain. I used it twice on a six-month-old medium-sized puppy, but due to various circumstances, it was outgrown before I could use it more. Purchased new, it's practically unused. - Color: Black - Size: XS-S - Brand: Hunter Thank you for looking.