[Integrated Design]-- Dog Harness with built-in stretchable leash, no need for additional purchases, and convenient for outings. [Safety Protection]-- Harness core features an automatic lock stretchable leash to prevent dogs from suddenly bolting and getting out of control, ensuring a safe walking experience. [Hands-Free Enjoyment]-- In open spaces like parks, slowly release the leash, with the leash automatically retracted into the dog harness, there's no need to hold anything in your hands, allowing you to fully enjoy interactive and playful moments with your dog. [Adjustable Dog Harness]-- With 4 easy adjusting straps around the body, you can create a custom fit for your dog, preventing slipping and choking while offering comfort and freedom of movement. [Durable and Comfortable]-- Made of high-density nylon oxford, breathable mesh lining The soft cushion padding protects your dog's skin, offering a comfortable and enjoyable experience.