This is a panic harness from Hunter, a popular dog gear manufacturer, in XS-S size with escape prevention features. It's designed to prevent even dogs that are prone to slipping their harnesses or are physically active from escaping. You can also use it as a regular harness by removing the third loop on the rear. This popular item is often sold out online, making it difficult to purchase. I used it twice on my six-month-old medium-sized dog, but due to various circumstances, he outgrew it before I could use it more. I bought it new, and it's practically unused. - Color: Black - Size: XS-S - Brand: Hunter Thank you for looking.