[Soft and breathable material]-The vest strap is made of lightweight breathable mesh, with padded, around the chest back, so that your pet can stay comfortable and not deformed after washing, prevent pulling and suffocation, and protect the cat's fragile neck Free from pain. [Adjustable vest strap]-The buckle can withstand large loads and prevent your pet from detaching. You can easily adjust the strap to make it fit your cat perfectly. Due to the safety jacket design, it prevents escape. [Escape outdoor safety belt]-This really comfortable small pet safety belt, adjustable bust, suitable for flexible cats, with sturdy safety buckles on both sides, suitable for daily walking, jogging, training and any outdoor leisure and activities. [Easy to open and close]-This walk-in cat harness is easy to put on and take off, with a back buckle and Velcro. When you walk and train, two heavy-duty D-rings can be connected to the belt. Product description Size Chart Small-Bust: 9-11 inches/23-28 cm, range weight: 3-6 lbs/1-3 kg. Medium-Bust: 11-13 inches/28-33 cm, range weight: 6-10 pounds/3-4.5 kg. Large-Chest: 13-15 inches/33-38 cm, range weight: 10-16 lbs/4.5-15 kg. *Before purchasing, please make sure to measure your cat in order to choose the correct size. * If your cat is between two sizes, please choose the smaller size. How to introduce cat harness and leash suit to your cat? The cat's body is very sensitive. In order to familiarize your cat with the harness, please wear it on your cat during your free time. When wearing a seat belt, treat your cat with food or toys so that your cat can form a positive connection with the seat belt. You can also save these rewards, which are only available when you tame the cat. If your cat exhibits any behavior that indicates an uncomfortable wearing experience, try distracting her with food or toys. If your cat continues to feel uncomfortable, remove the seat belt-you can try again later. *Never force your cat to wear a harness, because your cat may form a very bad connection with the harness and even get injured. Quick release buckle With 2 side buckles, it is easy to put on and take off the seat belt. The seat belt can be fixed well. Durable nylon webbing Made of sturdy material, it can provide good adjustability and safety. Sturdy metal belt loop Match the 47-inch (120 cm) belt to the metal belt attachment ring on the back How to put on and adjust the wiring harness? Put the seat belt on the floor and place the cat's front legs Adjust to match the cat's bust Tighten the fixing strap Connect the wire harness to the D-ring