Cat Harness with Leash: Please measure your pet's chest size accurately before choosing the cat harness, then add 2 to 3 cm to this measurement for a comfortable fit. Please refer to our size chart before purchasing. Adjustable Cat Harness: The pet harness has an adjustable buckle, which can be freely adjusted according to the pet's actual size. The ABS buckle is easy to put on and take off. S - Neck Girth: 24-34 cm. Chest Girth: 28-42 cm. Suitable for kittens/puppies weighing 1.5 kg-3.5 kg. M - Neck Girth: 28-42 cm. Chest Girth: 35-52 cm. Suitable for kittens/puppies weighing 3.5 kg-7.5 kg. Unique Small Backpack Design: You can store small items such as keys, garbage bags, tissues, snacks, etc. to make walking easier. The material is durable and machine washable. High-quality and comfortable harness for cats: The comfortable cat harness with soft and high-quality breathable material. Soft and lightweight (approx. 100 g). The ABS buckle is easy to put on and take off. Suitable for daily walking, jogging, training, and all outdoor leisure activities. Two uses: The cat leash and harness are detachable and can be worn in two different ways. According to the picture, you can switch as you like. Make your cat unique and very cute.