Anti-pull: the hook located at the level of the chest has been specially studied that less force is exerted when the dog pulls and deter your dog from pulling. Anti-choking: Effectively and comfortably covering the body, the harness distributes pressure evenly. In addition, the collar is stretchable so that your pet does not choke. Resistant harness and guarantees protection: made in padded Oxford fabric and resistant, hypoallergenic and breathable fabric lining, reflective strips. Easy to wear. put on: the harness has 4 adjustable straps and a wide opening to easily put the harness on. your dog. Assorted colors and sizes: available in 3 different sizes. Before proceeding to purchase, please refer to the size chart.