PERFECT FIT: This adjustable dog harness is customized for kittens and puppies of different sizes—XXS fits 1-4 lbs kittens, XS fits 3-7 lbs puppies/kittens. You can measure your pet's neck and chest dimensions and refer to our size chart before ordering to ensure a comfortable fit BREATHABLE AND COMFORTABLE: This puppy harness is made of soft, breathable jacquard fabric that is moisture wicking. Allow your pet to get some intense exercise while out and about while keeping their body cool and comfortable for a furry child to have a great summer REFLECTIVE DESIGN: This small dog harness features a reflective strip design for improved visibility on night walks and camping trips, ensuring that your pet is safe and easily seen in low light conditions NO PULL DOG HARNESS: It is not easy to fall off with the double fixing of buckle and velcro. Its undershirt design can evenly distribute the pressure of the leash to the chest and shoulders to prevent choking or neck strain, perfect for dog training or dogs that are prone to pulling EASY TO OPERATE: You can place your pet's front legs in the walk-in harness, then lift the puppy carrier to adjust the chest size, stick on the Velcro and lock the buckle, and finally clip the leash latch on the metal ring. This will allow you to take a walk with your pet Our Adjustable Dog Vest Harness - the ultimate solution for pet owners seeking comfort, safety, and style during walks, runs, or leisurely strolls. Designed specifically for small to medium-sized dogs and cats, this no-pull harness features a breathable mesh material that ensures your furry friend stays cool while providing excellent control. Its personalized design includes reflective elements for added visibility during night outings. Make every walk an enjoyable experience for you and your beloved companion with our vest harness!