Different sizes for dogs of different sizes, please MEASURE your dog or cat carefully and refer to the size guide before purchase, there may have some difference in the different breeds. This cat harness or small dog harness is made of lightweight, soft, breathable air-mesh fabric, with soft edge and resilient cushioning, which can effectively prevent injuries, giving extra comfort and protection, this all weather pet vest won't be too bulky to restrain your pet's movement or overheat your lovely pet when hot, and reinforced stitching allows you to walk your pet with confidence Our cat harness with reflective stripe can reflect ambient light in extreme low-light conditions, ensuring maximum visibility when night running; This outdoor kitten harness features a sturdy D-ring on the back to attach to a leash. Its vest-style design can evenly distribute leash pressure across the chest and shoulders to prevent choking or neck strain, which offers much more comfort and security than a basic halter or H-style harness. This cat harness has 2 side buckles for secure closure. The adjustable straps around the harness allow you to quickly customize the vest to your cat's tiny frame, so that he/she won't slip out easily or even get lost during outdoor adventures. It's a great gift for friends who have pets at home. It's a great gift. Plus it gives room to grow for your curious and fast-growing pet.